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} .loading { visibility: hidden; } .detail-page .post-footer .cmt_iframe_holder { padding-top: 40px !important; } /** Desktop **/ @media (max-width: 900px) { .col-right { display: none; } .col-main { margin-right: 0; min-width: initial; } .footer-outer { display: none; } .cols-wrapper { min-width: initial; } .google-footer-outer { background-color: #f5f5f5; } } /** Tablet **/ @media (max-width: 712px) { .header-outer, .cols-wrapper, .footer-outer, .google-footer-outer { padding: 0 40px; } } /* An extra breakpoint accommodating for long blog titles. */ @media (max-width: 600px) { .header-left { height: 100%; position: initial; top: inherit; margin-top: 0; -webkit-transform: initial; transform: initial; } .header-title { margin-top: 18px; } .header-inner { height: auto; margin-bottom: 32px; margin-top: 32px; } .header-desc { margin-top: 12px; } .header-inner .google-logo { height: 70px; margin-top: 3px; } .header-inner .google-logo img { height: 70px; } .header-title h2 { font-size: 32px; 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margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Posted by Rahul Roy-chowdhury, VP Product Management, Chrome </span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span id="docs-internal-guid-1665a770-ca3e-1301-ccb2-61355de5504e"></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">One of the virtues of the web is its immense reach, providing access to information for all internet users regardless of device or platform. </span><span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">With the explosion of mobile devices, the web has had to evolve to deliver great experiences on the small screen. This journey began a few years ago, and I am excited to be able to say that the mobile web is</span><span style="background-color: white; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><a href="https://developers.google.com/web/" style="text-decoration: none;"><span style="background-color: white; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">open for business</span></a><span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">. </span><span style="background-color: white; font-family: arial; font-size: 13.3333px; vertical-align: baseline; white-space: pre-wrap; widows: 1;">Hear the recording from Google I/O where I discussed the state of the union and how to take advantage of </span><span style="font-family: arial; font-size: 13.3333px; vertical-align: baseline; white-space: pre-wrap; widows: 1;">new experiences like AMP and Progressive Web Apps (PWAs) </span><span style="background-color: white; font-family: arial; font-size: 13.3333px; vertical-align: baseline; white-space: pre-wrap; widows: 1;">to deliver a best-in-class mobile experience.</span><br /> <br style="background-color: white; color: #222222; font-family: arial, sans-serif; font-size: small; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; line-height: normal; widows: 1;" /><div class="separator" style="clear: both; text-align: center;"> <iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/0SSI8liELJU/0.jpg" src="https://www.youtube.com/embed/0SSI8liELJU?feature=player_embedded" frameborder="0" allowfullscreen></iframe></div> <div dir="ltr" style="background-color: white; color: #222222; font-family: arial, sans-serif; font-size: small; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center; widows: 1;"> <br /></div> <span style="font-family: arial; font-size: 13.3333px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; line-height: normal; vertical-align: baseline; white-space: pre-wrap; widows: 1;">If you don’t have time to watch, </span><span style="font-family: arial; font-size: 13.3333px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; line-height: normal; vertical-align: baseline; white-space: pre-wrap; widows: 1;">here’s a quick recap of the four aspects to focus on while building </span><span style="background-color: white; color: #1c1c1c; font-family: arial; font-size: 13.3333px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; line-height: normal; vertical-align: baseline; white-space: pre-wrap; widows: 1;">a great mobile web experience:</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 700; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 700; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Accelerate</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Expressiveness has always been a strength of the web, but sometimes that expressiveness can come at the cost of loading time or smooth scrolling. For example, event listeners allow developers to create custom scrolling effects for their website, but they can introduce jank when Chrome needs to wait for any touch handler to finish before scrolling a page. With the new</span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><a href="http://blog.chromium.org/2016/05/new-apis-to-help-developers-improve.html" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">passive event listener API</span></a><span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">, we've given control back to the developer, who can indicate whether they plan to handle the scroll or if Chrome can begin scrolling immediately.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;">Speed also goes beyond user experience gains. </span><a href="https://www.soasta.com/blog/got-a-minute-how-to-speed-up-page-load-times/" style="text-decoration: none;"><span style="color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Studies</span></a><span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;"> have shown that 40% of users will leave a retail site if it takes longer than 3 seconds to load. To get a blazing fast web page in front of users immediately, we've introduced </span><a href="https://www.ampproject.org/" style="text-decoration: none;"><span style="color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Accelerated Mobile Pages (AMP)</span></a><span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;">. With AMP, we have seen pages load 4x faster and use up to 10x less data. AMP is already seeing great adoption by developers, with more than 640,000 domains serving AMP pages.</span></div> <div class="separator" style="clear: both; text-align: left;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div class="separator" style="clear: both; text-align: left;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 700; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Engage</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <a href="https://developers.google.com/web/#progressive-web-apps" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Progressive Web Apps (PWAs)</span></a><span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> let developers take advantage of new technologies to provide users with an engaging experience from the very first moment. Thanks to a new API called service worker, all the important parts of a web app can be cached so that it loads instantly the next time a user opens it. This caching also allows developers to continue to provide a fast and meaningful experience even when the user is offline or on an unreliable network. PWAs provide elements of polish too: an icon users can add to their home screen, a splash screen when they open it, and a full-screen experience with no address bar.</span></div> <div class="separator" style="clear: both; text-align: left;"> <b id="docs-internal-guid-1665a770-ca56-e20d-cc1a-ca46ecc1380e" style="font-weight: normal;"><br /></b></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><img alt="image 9.gif" height="383" src="https://lh6.googleusercontent.com/sj4osNKvh8FHF9x5sXhDsxHtzHLTLyhVska_XIyLDqO-TqIqkzlDlQGnwFuNzTG1S9xTbJrKB6O4cpSx8NDB9g6bP9EtqH9VS6nfRNpbQBTsp016LK9uwMTw1n8l16ZnxFGV0AqZ" style="-webkit-transform: rotate(0.00rad); border: none; transform: rotate(0.00rad);" width="215" /></span></div> <div class="separator" style="clear: both; text-align: left;"> <br /></div> <div style="text-align: center;"> <span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; white-space: pre-wrap;">JalanTikus Progressive Web App</span></div> <br /> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: white; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 700; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Convert</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Logging in is a ubiquitous pattern on the web, but</span><span style="background-color: transparent; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><a href="http://conversionxl.com/social-login/" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">92% of users</span></a><span style="background-color: transparent; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">abandon a task if they've forgotten their password. To alleviate this pain, Chrome's password manager enables more than 8-billion sign-ins per month, and we're expanding support with the </span><a href="https://developers.google.com/web/updates/2016/04/credential-management-api?hl=en" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Credential Management API</span></a><span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">. Using this API allows web apps to more closely integrate with the password manager and streamline the sign-in process.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: white; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span id="docs-internal-guid-1665a770-ca57-83b2-fec3-939d68a5a30e"><br /><span style="background-color: transparent; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;">Even once logged in, checkout can be a complicated process to complete. That's why we're also investing in capabilities such as the </span><a href="https://github.com/w3c/browser-payment-api/" style="color: black; text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-size: 13.333333333333332px; text-decoration: underline; vertical-align: baseline;">Web Payment API</span></a><span style="background-color: transparent; color: black; font-size: 13.333333333333332px; vertical-align: baseline;"> </span><span style="background-color: transparent; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;">and enhanced autofill, assisting users by accurately filling in forms for them. We've found that forms are completed 25% more when autofill is available, increasing odds for conversion.</span></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: white; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span style="background-color: transparent; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;"><br /></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: white; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span style="background-color: transparent; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;"><br /></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 700; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Retain</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Once the first interaction with a user is complete, re-engaging on the web can be tricky. Push notifications address this challenge on native apps, and now the</span><span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><a href="https://developers.google.com/web/fundamentals/getting-started/push-notifications/" style="text-decoration: none;"><span style="background-color: white; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">push API</span></a><span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">is available on the web as well. This allows developers to reconnect with their users even if the browser isn't running.</span><span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Over 10 billion push notifications are sent every day in Chrome, and it’s growing quickly. Jumia </span><a href="https://developers.google.com/web/showcase/2016/jumia" style="text-decoration: none;"><span style="background-color: white; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">found</span></a><span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> that users who enabled push notifications opened those notifications 38% of the time and recovered carts 9x more often than other users.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: white; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><b id="docs-internal-guid-1665a770-ca58-13ac-d270-99b154c3a6bf" style="font-weight: normal;"><br /></b></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><img height="287" src="https://lh6.googleusercontent.com/roElmTSN409hVJ_krYLevf2JaGyM7QE8TyANJAMjlIzYQKmjYdPTz-rLEToh5R9eTxpyXVqY-AahYqhaokT8_m2z2TmJZHi94wOFg9uRVXe7Yrg3wCXJSqykMMVevTBiRWvUugHc" style="-webkit-transform: rotate(0.00rad); border: none; transform: rotate(0.00rad);" width="162" /></span><span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">     </span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Jumia Mobile Web Push Notifications</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 700; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 700; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Success Stories</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span id="docs-internal-guid-1665a770-ca58-5863-cdde-1c34f0cae4fa"><span style="font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;">As developers begin embracing these new technologies, we're seeing success stories from around the world.</span><span style="background-color: transparent; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;"> </span><a href="https://developers.google.com/web/showcase/2016/aliexpress" style="color: #333333; text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-size: 13.333333333333332px; text-decoration: underline; vertical-align: baseline;">AliExpress</span></a><span style="background-color: transparent; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;">, </span><span style="font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;">one of the world's largest e-commerce sites, built a PWA and saw conversion rates for new users increase by 104%. </span><span style="background-color: transparent; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;">They've also found that u</span><span style="font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;">sers love the experience, spending </span><span style="font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;">74% more time on their site per session. </span></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span style="color: black; font-size: 13.333333333333332px; vertical-align: baseline;"><br /></span></span></div> <div class="separator" style="clear: both; text-align: left;"> <br /></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;">Another great example is</span><span style="background-color: white; color: #181818; font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;"> </span><a href="https://developers.google.com/web/showcase/2016/babe" style="text-decoration: none;"><span style="background-color: white; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">BaBe</span></a><span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;">, an Indonesian news aggregator service that was app-only until they developed a PWA with feature parity to their native app. Since launching they have found it to perform even faster than their native app, and have seen comparable time spent per session: </span><span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;">3 minutes on average on both their mobile website and their native app.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <br /></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <br /></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Even developers who have only begun implementing certain PWA technologies have seen success.</span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><a href="https://developers.google.com/web/showcase/2016/extra" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">United eXtra</span></a><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">, </span><span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">a leading retailer in Saudi Arabia, implemented push notifications and saw users who opted-in returned 4x more often. </span><span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">These returning users also spent 100% more than users returning from other channels.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">These are just a handful of businesses that have begun reaping the benefits of investing in Progressive Web Apps.</span><span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><a href="https://developers.google.com/web/showcase/" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Learn more</span></a><span style="background-color: transparent; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">about our how partners are using PWA technologies to enhance their mobile web experience.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span style="color: black; font-size: 13.333333333333332px; vertical-align: baseline;"><br /></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span id="docs-internal-guid-1665a770-ca59-8c75-40e5-0ba922ff66d1"><span style="background-color: transparent; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;"><img alt="Screen Shot 2016-05-17 at 6.06.16 PM.png" height="216" src="https://lh4.googleusercontent.com/6L76snqEx_m1bnXfc_hY4pPOMTvuBm761QnGFi0LjFp6VKigupUL4Z6n_7wr9OOR-6g6dBS467beLOUlJTEOA8JJj5u-2N6JD-_nzweHaPBIExt6FBfad6ykQ6S_mcIWL1SY89rp" style="border: none; transform: rotate(0rad);" width="440" /></span></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span style="background-color: transparent; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;"><br /></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span id="docs-internal-guid-1665a770-ca59-cb1f-ace7-909c9841b6d9"><a href="https://www.youtube.com/user/ChromeDevelopers?sub_confirmation=1" style="color: #333333; text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-size: 13.333333333333332px; text-decoration: underline; vertical-align: baseline;">Subscribe</span></a><span style="background-color: transparent; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;"><span style="color: #333333;"> </span>to our YouTube channel to stay up to date with all the mobile web sessions from Google I/O, which we will continue to upload as they’re ready. Thanks for coming, thanks for watching, and most of all, thank you for developing for the web!</span></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span style="color: black; font-size: 13.333333333333332px; vertical-align: baseline;"><br /></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span style="color: black; font-size: 13.333333333333332px; vertical-align: baseline;"><br /></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span style="color: black; font-size: 13.333333333333332px; vertical-align: baseline;"><br /></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span style="color: black; font-size: 13.333333333333332px; vertical-align: baseline;"><br /></span></span></div> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </script> <noscript> <span id="docs-internal-guid-1665a770-ca3d-e495-9684-659a495f742e"></span><br /> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Posted by Rahul Roy-chowdhury, VP Product Management, Chrome </span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span id="docs-internal-guid-1665a770-ca3e-1301-ccb2-61355de5504e"></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">One of the virtues of the web is its immense reach, providing access to information for all internet users regardless of device or platform. </span><span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">With the explosion of mobile devices, the web has had to evolve to deliver great experiences on the small screen. This journey began a few years ago, and I am excited to be able to say that the mobile web is</span><span style="background-color: white; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><a href="https://developers.google.com/web/" style="text-decoration: none;"><span style="background-color: white; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">open for business</span></a><span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">. </span><span style="background-color: white; font-family: arial; font-size: 13.3333px; vertical-align: baseline; white-space: pre-wrap; widows: 1;">Hear the recording from Google I/O where I discussed the state of the union and how to take advantage of </span><span style="font-family: arial; font-size: 13.3333px; vertical-align: baseline; white-space: pre-wrap; widows: 1;">new experiences like AMP and Progressive Web Apps (PWAs) </span><span style="background-color: white; font-family: arial; font-size: 13.3333px; vertical-align: baseline; white-space: pre-wrap; widows: 1;">to deliver a best-in-class mobile experience.</span><br /> <br style="background-color: white; color: #222222; font-family: arial, sans-serif; font-size: small; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; line-height: normal; widows: 1;" /><div class="separator" style="clear: both; text-align: center;"> <iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/0SSI8liELJU/0.jpg" src="https://www.youtube.com/embed/0SSI8liELJU?feature=player_embedded" frameborder="0" allowfullscreen></iframe></div> <div dir="ltr" style="background-color: white; color: #222222; font-family: arial, sans-serif; font-size: small; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center; widows: 1;"> <br /></div> <span style="font-family: arial; font-size: 13.3333px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; line-height: normal; vertical-align: baseline; white-space: pre-wrap; widows: 1;">If you don’t have time to watch, </span><span style="font-family: arial; font-size: 13.3333px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; line-height: normal; vertical-align: baseline; white-space: pre-wrap; widows: 1;">here’s a quick recap of the four aspects to focus on while building </span><span style="background-color: white; color: #1c1c1c; font-family: arial; font-size: 13.3333px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; line-height: normal; vertical-align: baseline; white-space: pre-wrap; widows: 1;">a great mobile web experience:</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 700; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 700; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Accelerate</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Expressiveness has always been a strength of the web, but sometimes that expressiveness can come at the cost of loading time or smooth scrolling. For example, event listeners allow developers to create custom scrolling effects for their website, but they can introduce jank when Chrome needs to wait for any touch handler to finish before scrolling a page. With the new</span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><a href="http://blog.chromium.org/2016/05/new-apis-to-help-developers-improve.html" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">passive event listener API</span></a><span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">, we've given control back to the developer, who can indicate whether they plan to handle the scroll or if Chrome can begin scrolling immediately.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;">Speed also goes beyond user experience gains. </span><a href="https://www.soasta.com/blog/got-a-minute-how-to-speed-up-page-load-times/" style="text-decoration: none;"><span style="color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Studies</span></a><span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;"> have shown that 40% of users will leave a retail site if it takes longer than 3 seconds to load. To get a blazing fast web page in front of users immediately, we've introduced </span><a href="https://www.ampproject.org/" style="text-decoration: none;"><span style="color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Accelerated Mobile Pages (AMP)</span></a><span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;">. With AMP, we have seen pages load 4x faster and use up to 10x less data. AMP is already seeing great adoption by developers, with more than 640,000 domains serving AMP pages.</span></div> <div class="separator" style="clear: both; text-align: left;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div class="separator" style="clear: both; text-align: left;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 700; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Engage</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <a href="https://developers.google.com/web/#progressive-web-apps" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Progressive Web Apps (PWAs)</span></a><span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> let developers take advantage of new technologies to provide users with an engaging experience from the very first moment. Thanks to a new API called service worker, all the important parts of a web app can be cached so that it loads instantly the next time a user opens it. This caching also allows developers to continue to provide a fast and meaningful experience even when the user is offline or on an unreliable network. PWAs provide elements of polish too: an icon users can add to their home screen, a splash screen when they open it, and a full-screen experience with no address bar.</span></div> <div class="separator" style="clear: both; text-align: left;"> <b id="docs-internal-guid-1665a770-ca56-e20d-cc1a-ca46ecc1380e" style="font-weight: normal;"><br /></b></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><img alt="image 9.gif" height="383" src="https://lh6.googleusercontent.com/sj4osNKvh8FHF9x5sXhDsxHtzHLTLyhVska_XIyLDqO-TqIqkzlDlQGnwFuNzTG1S9xTbJrKB6O4cpSx8NDB9g6bP9EtqH9VS6nfRNpbQBTsp016LK9uwMTw1n8l16ZnxFGV0AqZ" style="-webkit-transform: rotate(0.00rad); border: none; transform: rotate(0.00rad);" width="215" /></span></div> <div class="separator" style="clear: both; text-align: left;"> <br /></div> <div style="text-align: center;"> <span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; white-space: pre-wrap;">JalanTikus Progressive Web App</span></div> <br /> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: white; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 700; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Convert</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Logging in is a ubiquitous pattern on the web, but</span><span style="background-color: transparent; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><a href="http://conversionxl.com/social-login/" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">92% of users</span></a><span style="background-color: transparent; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">abandon a task if they've forgotten their password. To alleviate this pain, Chrome's password manager enables more than 8-billion sign-ins per month, and we're expanding support with the </span><a href="https://developers.google.com/web/updates/2016/04/credential-management-api?hl=en" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Credential Management API</span></a><span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">. Using this API allows web apps to more closely integrate with the password manager and streamline the sign-in process.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: white; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span id="docs-internal-guid-1665a770-ca57-83b2-fec3-939d68a5a30e"><br /><span style="background-color: transparent; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;">Even once logged in, checkout can be a complicated process to complete. That's why we're also investing in capabilities such as the </span><a href="https://github.com/w3c/browser-payment-api/" style="color: black; text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-size: 13.333333333333332px; text-decoration: underline; vertical-align: baseline;">Web Payment API</span></a><span style="background-color: transparent; color: black; font-size: 13.333333333333332px; vertical-align: baseline;"> </span><span style="background-color: transparent; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;">and enhanced autofill, assisting users by accurately filling in forms for them. We've found that forms are completed 25% more when autofill is available, increasing odds for conversion.</span></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: white; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span style="background-color: transparent; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;"><br /></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: white; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span style="background-color: transparent; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;"><br /></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 700; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Retain</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Once the first interaction with a user is complete, re-engaging on the web can be tricky. Push notifications address this challenge on native apps, and now the</span><span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><a href="https://developers.google.com/web/fundamentals/getting-started/push-notifications/" style="text-decoration: none;"><span style="background-color: white; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">push API</span></a><span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">is available on the web as well. This allows developers to reconnect with their users even if the browser isn't running.</span><span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Over 10 billion push notifications are sent every day in Chrome, and it’s growing quickly. Jumia </span><a href="https://developers.google.com/web/showcase/2016/jumia" style="text-decoration: none;"><span style="background-color: white; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">found</span></a><span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> that users who enabled push notifications opened those notifications 38% of the time and recovered carts 9x more often than other users.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: white; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><b id="docs-internal-guid-1665a770-ca58-13ac-d270-99b154c3a6bf" style="font-weight: normal;"><br /></b></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><img height="287" src="https://lh6.googleusercontent.com/roElmTSN409hVJ_krYLevf2JaGyM7QE8TyANJAMjlIzYQKmjYdPTz-rLEToh5R9eTxpyXVqY-AahYqhaokT8_m2z2TmJZHi94wOFg9uRVXe7Yrg3wCXJSqykMMVevTBiRWvUugHc" style="-webkit-transform: rotate(0.00rad); border: none; transform: rotate(0.00rad);" width="162" /></span><span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">     </span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Jumia Mobile Web Push Notifications</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 700; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 700; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Success Stories</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span id="docs-internal-guid-1665a770-ca58-5863-cdde-1c34f0cae4fa"><span style="font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;">As developers begin embracing these new technologies, we're seeing success stories from around the world.</span><span style="background-color: transparent; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;"> </span><a href="https://developers.google.com/web/showcase/2016/aliexpress" style="color: #333333; text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-size: 13.333333333333332px; text-decoration: underline; vertical-align: baseline;">AliExpress</span></a><span style="background-color: transparent; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;">, </span><span style="font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;">one of the world's largest e-commerce sites, built a PWA and saw conversion rates for new users increase by 104%. </span><span style="background-color: transparent; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;">They've also found that u</span><span style="font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;">sers love the experience, spending </span><span style="font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;">74% more time on their site per session. </span></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span style="color: black; font-size: 13.333333333333332px; vertical-align: baseline;"><br /></span></span></div> <div class="separator" style="clear: both; text-align: left;"> <br /></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;">Another great example is</span><span style="background-color: white; color: #181818; font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;"> </span><a href="https://developers.google.com/web/showcase/2016/babe" style="text-decoration: none;"><span style="background-color: white; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">BaBe</span></a><span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;">, an Indonesian news aggregator service that was app-only until they developed a PWA with feature parity to their native app. Since launching they have found it to perform even faster than their native app, and have seen comparable time spent per session: </span><span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;">3 minutes on average on both their mobile website and their native app.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <br /></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <br /></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Even developers who have only begun implementing certain PWA technologies have seen success.</span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><a href="https://developers.google.com/web/showcase/2016/extra" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">United eXtra</span></a><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">, </span><span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">a leading retailer in Saudi Arabia, implemented push notifications and saw users who opted-in returned 4x more often. </span><span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">These returning users also spent 100% more than users returning from other channels.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">These are just a handful of businesses that have begun reaping the benefits of investing in Progressive Web Apps.</span><span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><a href="https://developers.google.com/web/showcase/" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Learn more</span></a><span style="background-color: transparent; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><span style="background-color: transparent; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">about our how partners are using PWA technologies to enhance their mobile web experience.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span style="color: black; font-size: 13.333333333333332px; vertical-align: baseline;"><br /></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span id="docs-internal-guid-1665a770-ca59-8c75-40e5-0ba922ff66d1"><span style="background-color: transparent; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;"><img alt="Screen Shot 2016-05-17 at 6.06.16 PM.png" height="216" src="https://lh4.googleusercontent.com/6L76snqEx_m1bnXfc_hY4pPOMTvuBm761QnGFi0LjFp6VKigupUL4Z6n_7wr9OOR-6g6dBS467beLOUlJTEOA8JJj5u-2N6JD-_nzweHaPBIExt6FBfad6ykQ6S_mcIWL1SY89rp" style="border: none; transform: rotate(0rad);" width="440" /></span></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span style="background-color: transparent; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;"><br /></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span id="docs-internal-guid-1665a770-ca59-cb1f-ace7-909c9841b6d9"><a href="https://www.youtube.com/user/ChromeDevelopers?sub_confirmation=1" style="color: #333333; text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-size: 13.333333333333332px; text-decoration: underline; vertical-align: baseline;">Subscribe</span></a><span style="background-color: transparent; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline;"><span style="color: #333333;"> </span>to our YouTube channel to stay up to date with all the mobile web sessions from Google I/O, which we will continue to upload as they’re ready. Thanks for coming, thanks for watching, and most of all, thank you for developing for the web!</span></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span style="color: black; font-size: 13.333333333333332px; vertical-align: baseline;"><br /></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span style="color: black; font-size: 13.333333333333332px; vertical-align: baseline;"><br /></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span style="color: black; font-size: 13.333333333333332px; vertical-align: baseline;"><br /></span></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: left;"> <span style="background-color: white; color: #333333; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><span style="color: black; font-size: 13.333333333333332px; vertical-align: baseline;"><br /></span></span></div> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </noscript> </div> </div> <div class='share'> <span class='twitter-custom social-wrapper' data-href='http://twitter.com/share?text=Chromium Blog:The Mobile Web Is Open for Business&url=https://blog.chromium.org/2016/05/the-mobile-web-is-open-for-business.html&via=ChromiumDev'> <img alt='Share on Twitter' height='24' src='https://www.gstatic.com/images/icons/material/system/2x/post_twitter_black_24dp.png' width='24'/> </span> <span class='fb-custom social-wrapper' data-href='https://www.facebook.com/sharer.php?u=https://blog.chromium.org/2016/05/the-mobile-web-is-open-for-business.html'> <img alt='Share on Facebook' height='24' src='https://www.gstatic.com/images/icons/material/system/2x/post_facebook_black_24dp.png' width='24'/> </span> </div> <div class='post-footer'> <div class='cmt_iframe_holder' data-href='https://blog.chromium.org/2016/05/the-mobile-web-is-open-for-business.html' data-viewtype='FILTERED_POSTMOD'></div> <a href='https://plus.google.com/112374322230920073195' rel='author' style='display:none;'> Google </a> <div class='label-footer'> </div> </div> </div> <div class='post' data-id='8806671991561914628' itemscope='' itemtype='http://schema.org/BlogPosting'> <h2 class='title' itemprop='name'> <a href='https://blog.chromium.org/2016/05/saving-data-with-googles-pagespeed.html' itemprop='url' title='Saving data with Google’s PageSpeed Modules'> Saving data with Google’s PageSpeed Modules </a> </h2> <div class='post-header'> <div class='published'> <span class='publishdate' itemprop='datePublished'> Thursday, May 12, 2016 </span> </div> </div> <div class='post-body'> <div class='post-content' itemprop='articleBody'> <script type='text/template'> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">The web is a rich and diverse ecosystem, but sometimes that diversity comes at a price. Authoring a website that works quickly and correctly for all browsers, devices, and connections can be a time-consuming task. </span><a href="https://developers.google.com/speed/pagespeed/module/" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Google’s PageSpeed Modules</span></a><span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">, launched in 2010, enable web servers to automatically speed up sites as content is served. Two new features are available in the latest stable release of PageSpeed to accommodate the diversity of screen sizes and data connections.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">Screen resolutions are a common difference among devices. Users with high-resolution screens on fast connections will love crisp, detailed images. Sending those same images to users with small screens on  slow connections will unnecessarily delay the page load and waste their potentially expensive bandwidth. The HTML </span><a href="https://developers.whatwg.org/edits.html#attr-img-srcset" style="text-decoration: none;"><span style="color: #1155cc; font-family: 'Courier New'; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">srcset</span><span style="color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;"> attribute</span></a><span style="font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;"> attribute allows developers to specify alternative versions of an image for the browser to use depending on screen size, but they must manually add this to every image on the page, and also encode the images in several sizes. Fortunately, the latest release of PageSpeed Modules can automate this process.  For example, imagine a page containing the following image element:</span></div> <b style="font-weight: normal;"><br /></b> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-indent: 36pt;"> <span style="background-color: transparent; color: black; font-family: 'Courier New'; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><img width="500" height="500" src="Beach.jpg"></span></div> <b style="font-weight: normal;"><br /></b> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">When PageSpeed's </span><a href="https://developers.google.com/speed/pagespeed/module/filter-image-responsive" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">responsive_images filter</span></a><span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> encounters this, it will automatically create resized versions of the images, then rewrite the element as :</span></div> <b style="font-weight: normal;"><br /></b> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-indent: 36pt;"> <span style="background-color: transparent; color: black; font-family: 'Courier New'; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><img width="500" height="500" src="500x500xBeach.jpg..."</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-indent: 36pt;"> <span style="background-color: transparent; color: black; font-family: 'Courier New'; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">    srcset="750x750xBeach.jpg... 1.5x,</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-indent: 36pt;"> <span style="background-color: transparent; color: black; font-family: 'Courier New'; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">            1000x1000xBeach.jpg... 2x,</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-indent: 36pt;"> <span style="background-color: transparent; color: black; font-family: 'Courier New'; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">            1500x1500xBeach.jpg... 3x,</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-indent: 36pt;"> <span style="background-color: transparent; color: black; font-family: 'Courier New'; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">            xBeach.jpg... 3.4x"></span></div> <b style="font-weight: normal;"><br /></b> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">PageSpeed inserts 1.5x, 2x and 3x variants which provides coverage for the most common devices. It also includes the original full-size image and calculates its effective multiple </span><span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: line-through; vertical-align: baseline; white-space: pre-wrap;">—</span><span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> 3.4x, in the above example. The original will be used by high-density displays or when zoomed in.</span></div> <b style="font-weight: normal;"><br /></b> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">For users that want to save as much data as possible, PageSpeed Modules can take this one step further. Chromium-based browsers send the </span><a href="https://developers.google.com/web/updates/2016/02/save-data?hl=en" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">“Save-Data” header</span></a><span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> when the user has indicated a desire to conserve bandwidth. Supporting this typically requires site developers to re-encode low bandwidth versions of all images and serve these just to the clients that send this header. The latest </span><a href="https://developers.google.com/speed/pagespeed/module/" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">release</span></a><span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> of PageSpeed understands the Save-Data header and will automatically compress images more aggressively for these data-sensitive users. </span></div> <b style="font-weight: normal;"><br /></b> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-indent: 36pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">  </span><span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><img alt="combined.png" height="469" src="https://lh5.googleusercontent.com/KZa_A1r0hmpiQ_THSjhUdj9zQ24hrbZb2jJMjElL-i25LEL-IWqbhPZbPyGNB_FYBXspy_--xJWuN5U0MTfNJMBVvVhS2BneArmjeMgLi6t-W7GijNKcgNJ0QYGN-sihzh54fnb2" style="-webkit-transform: rotate(0.00rad); border: none; transform: rotate(0.00rad);" width="528" /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <a href="https://modpagespeed.com/wall-demo/" style="text-decoration: none;"><span style="background-color: white; color: #1155cc; font-family: Arial; font-size: 10.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Mock storefront</span></a><span style="background-color: white; color: #333333; font-family: Arial; font-size: 10.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> without PageSpeed (left), and with PageSpeed and the Save-Data header (right).</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <span style="background-color: white; color: #333333; font-family: Arial; font-size: 10.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> Even though there are no apparent visual differences, without PageSpeed the page is 350KB and takes over a minute to load on our simulated 2G connection. With PageSpeed and the Save-Data header the page is 120KB and loads in less than 30 seconds.</span></div> <br /> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">These new features, along with many others to make sites smaller and load faster, are available in the </span><a href="https://groups.google.com/forum/#!topic/mod-pagespeed-announce/8Z__voASdZo" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">latest release</span></a><span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> of PageSpeed Modules. Developers interested in trying it out can </span><a href="https://developers.google.com/speed/pagespeed/module/download" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">download the modules</span></a><span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> from the Google Developers site.</span></div> <br /><span style="font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;"><br /></span><br /> <span style="font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">Posted by Steve Hill, PageSpeed Engineer and Reducer of Bytes </span> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </script> <noscript> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">The web is a rich and diverse ecosystem, but sometimes that diversity comes at a price. Authoring a website that works quickly and correctly for all browsers, devices, and connections can be a time-consuming task. </span><a href="https://developers.google.com/speed/pagespeed/module/" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Google’s PageSpeed Modules</span></a><span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">, launched in 2010, enable web servers to automatically speed up sites as content is served. Two new features are available in the latest stable release of PageSpeed to accommodate the diversity of screen sizes and data connections.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">Screen resolutions are a common difference among devices. Users with high-resolution screens on fast connections will love crisp, detailed images. Sending those same images to users with small screens on  slow connections will unnecessarily delay the page load and waste their potentially expensive bandwidth. The HTML </span><a href="https://developers.whatwg.org/edits.html#attr-img-srcset" style="text-decoration: none;"><span style="color: #1155cc; font-family: 'Courier New'; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">srcset</span><span style="color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;"> attribute</span></a><span style="font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;"> attribute allows developers to specify alternative versions of an image for the browser to use depending on screen size, but they must manually add this to every image on the page, and also encode the images in several sizes. Fortunately, the latest release of PageSpeed Modules can automate this process.  For example, imagine a page containing the following image element:</span></div> <b style="font-weight: normal;"><br /></b> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-indent: 36pt;"> <span style="background-color: transparent; color: black; font-family: 'Courier New'; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><img width="500" height="500" src="Beach.jpg"></span></div> <b style="font-weight: normal;"><br /></b> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">When PageSpeed's </span><a href="https://developers.google.com/speed/pagespeed/module/filter-image-responsive" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">responsive_images filter</span></a><span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> encounters this, it will automatically create resized versions of the images, then rewrite the element as :</span></div> <b style="font-weight: normal;"><br /></b> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-indent: 36pt;"> <span style="background-color: transparent; color: black; font-family: 'Courier New'; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><img width="500" height="500" src="500x500xBeach.jpg..."</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-indent: 36pt;"> <span style="background-color: transparent; color: black; font-family: 'Courier New'; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">    srcset="750x750xBeach.jpg... 1.5x,</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-indent: 36pt;"> <span style="background-color: transparent; color: black; font-family: 'Courier New'; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">            1000x1000xBeach.jpg... 2x,</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-indent: 36pt;"> <span style="background-color: transparent; color: black; font-family: 'Courier New'; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">            1500x1500xBeach.jpg... 3x,</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-indent: 36pt;"> <span style="background-color: transparent; color: black; font-family: 'Courier New'; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">            xBeach.jpg... 3.4x"></span></div> <b style="font-weight: normal;"><br /></b> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">PageSpeed inserts 1.5x, 2x and 3x variants which provides coverage for the most common devices. It also includes the original full-size image and calculates its effective multiple </span><span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: line-through; vertical-align: baseline; white-space: pre-wrap;">—</span><span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> 3.4x, in the above example. The original will be used by high-density displays or when zoomed in.</span></div> <b style="font-weight: normal;"><br /></b> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">For users that want to save as much data as possible, PageSpeed Modules can take this one step further. Chromium-based browsers send the </span><a href="https://developers.google.com/web/updates/2016/02/save-data?hl=en" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">“Save-Data” header</span></a><span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> when the user has indicated a desire to conserve bandwidth. Supporting this typically requires site developers to re-encode low bandwidth versions of all images and serve these just to the clients that send this header. The latest </span><a href="https://developers.google.com/speed/pagespeed/module/" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">release</span></a><span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> of PageSpeed understands the Save-Data header and will automatically compress images more aggressively for these data-sensitive users. </span></div> <b style="font-weight: normal;"><br /></b> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-indent: 36pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">  </span><span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><img alt="combined.png" height="469" src="https://lh5.googleusercontent.com/KZa_A1r0hmpiQ_THSjhUdj9zQ24hrbZb2jJMjElL-i25LEL-IWqbhPZbPyGNB_FYBXspy_--xJWuN5U0MTfNJMBVvVhS2BneArmjeMgLi6t-W7GijNKcgNJ0QYGN-sihzh54fnb2" style="-webkit-transform: rotate(0.00rad); border: none; transform: rotate(0.00rad);" width="528" /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <a href="https://modpagespeed.com/wall-demo/" style="text-decoration: none;"><span style="background-color: white; color: #1155cc; font-family: Arial; font-size: 10.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Mock storefront</span></a><span style="background-color: white; color: #333333; font-family: Arial; font-size: 10.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> without PageSpeed (left), and with PageSpeed and the Save-Data header (right).</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <span style="background-color: white; color: #333333; font-family: Arial; font-size: 10.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> Even though there are no apparent visual differences, without PageSpeed the page is 350KB and takes over a minute to load on our simulated 2G connection. With PageSpeed and the Save-Data header the page is 120KB and loads in less than 30 seconds.</span></div> <br /> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">These new features, along with many others to make sites smaller and load faster, are available in the </span><a href="https://groups.google.com/forum/#!topic/mod-pagespeed-announce/8Z__voASdZo" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">latest release</span></a><span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> of PageSpeed Modules. Developers interested in trying it out can </span><a href="https://developers.google.com/speed/pagespeed/module/download" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">download the modules</span></a><span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> from the Google Developers site.</span></div> <br /><span style="font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;"><br /></span><br /> <span style="font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">Posted by Steve Hill, PageSpeed Engineer and Reducer of Bytes </span> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </noscript> </div> </div> <div class='share'> <span class='twitter-custom social-wrapper' data-href='http://twitter.com/share?text=Chromium Blog:Saving data with Google’s PageSpeed Modules&url=https://blog.chromium.org/2016/05/saving-data-with-googles-pagespeed.html&via=ChromiumDev'> <img alt='Share on Twitter' height='24' src='https://www.gstatic.com/images/icons/material/system/2x/post_twitter_black_24dp.png' width='24'/> </span> <span class='fb-custom social-wrapper' data-href='https://www.facebook.com/sharer.php?u=https://blog.chromium.org/2016/05/saving-data-with-googles-pagespeed.html'> <img alt='Share on Facebook' height='24' src='https://www.gstatic.com/images/icons/material/system/2x/post_facebook_black_24dp.png' width='24'/> </span> </div> <div class='post-footer'> <div class='cmt_iframe_holder' data-href='https://blog.chromium.org/2016/05/saving-data-with-googles-pagespeed.html' data-viewtype='FILTERED_POSTMOD'></div> <a href='https://plus.google.com/112374322230920073195' rel='author' style='display:none;'> Google </a> <div class='label-footer'> </div> </div> </div> <div class='post' data-id='4944238654730231842' itemscope='' itemtype='http://schema.org/BlogPosting'> <h2 class='title' itemprop='name'> <a href='https://blog.chromium.org/2016/05/new-apis-to-help-developers-improve.html' itemprop='url' title='New APIs to help developers improve scroll performance'> New APIs to help developers improve scroll performance </a> </h2> <div class='post-header'> <div class='published'> <span class='publishdate' itemprop='datePublished'> Tuesday, May 3, 2016 </span> </div> </div> <div class='post-body'> <div class='post-content' itemprop='articleBody'> <script type='text/template'> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Speed has been a top priority since Chrome's first release, and it's only gotten more important as developers continue to push the boundaries of interactive web experiences. While there are many performance optimizations Chrome can make without involving the developer, sometimes it's impossible for Chrome to execute as quickly as possible without more information. In </span><a href="http://blog.chromium.org/2016/04/chrome-51-beta-credential-management.html" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Chrome 51</span></a><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> we've introduced support for </span><a href="https://github.com/WICG/EventListenerOptions/blob/gh-pages/explainer.md" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">passive event listeners</span></a><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> and </span><a href="https://wicg.github.io/IntersectionObserver/" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Intersection Observer</span></a><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">, two emerging web standards that help developers create engaging, efficient experiences.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; white-space: pre-wrap;">Touch event listeners are often used on the web for custom scrolling experiences and user engagement analytics. They allow developers to register JavaScript to run when the user touches the screen, and give web apps the opportunity to cancel scrolling altogether. Without knowing in advance if the web app will cancel scrolling, Chrome needs to wait for this JavaScript to finish before scrolling the page itself. Over 80% of touch listeners don't cancel the scroll and unnecessarily delay scrolling by up to several seconds. This results in a large amount of jank where the page doesn't seem anchored to the user's finger.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;">Chrome 51 allows developers to proactively declare that an event listener won't prevent a scroll. While developers should continue to avoid long-running script to </span><a href="https://developers.google.com/web/tools/chrome-devtools/profile/evaluate-performance/rail?hl=en#response-respond-in-under-100ms" style="text-decoration: none;"><span style="color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">reduce all forms of jank</span></a><span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;">, this change eliminates the need to delay scrolling until the JavaScript completes. To learn more about passive event listeners and how to use them, check out the in-depth </span><a href="https://github.com/WICG/EventListenerOptions/blob/gh-pages/explainer.md" style="text-decoration: none;"><span style="color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">EventListenerOptions explainer</span></a><span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;">.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div class="separator" style="clear: both; text-align: center;"> <iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/65VMej8n23A/0.jpg" frameborder="0" height="366" src="https://www.youtube.com/embed/65VMej8n23A?feature=player_embedded" width="520"></iframe></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <br /></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: italic; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Touch scrolling on cnn.com unmodified (left) and with a planned site update to make touch listeners passive (right).</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: italic; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <b style="font-weight: normal;"><br /></b> <br /> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Another way web platform improvements can help developers reduce delays is take common operations that can't be implemented efficiently in JavaScript and instead build them natively into the browser. One prevalent example is heavy Javascript used to calculate whether an element is visible in the document's viewport or other scrolling container. This is useful for knowing whether a certain element was seen or when to dynamically load more content at the bottom of a page, but can cause annoying jank and unnecessary battery drain if run frequently on user interactions.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <br /></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Chrome 51 includes support for Intersection Observer, a new API to provide viewability information in a more efficient way. Sites can receive a callback whenever any element intersects a watched element or its children. The site no longer needs to implement this functionality with its own custom JavaScript, and gains the benefits of improved page load and scroll performance. For more information and implementation details, see the </span><a href="https://developers.google.com/web/updates/2016/04/intersectionobserver?hl=en" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Intersection Observer explainer</span></a><span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">.</span></div> <span><br /></span> <span id="docs-internal-guid-fd99ea7e-77fd-142c-23b5-0c9371bdd27d"><br /><a href="http://googleresearch.blogspot.com/2009/06/speed-matters.html" style="text-decoration: none;"><span style="background-color: white; color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Studies</span></a><span style="background-color: white; color: #222222; font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;"> </span><a href="http://engineroom.ft.com/2016/04/04/a-faster-ft-com/" style="text-decoration: none;"><span style="background-color: white; color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">have</span></a><span style="background-color: white; color: #222222; font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;"> </span><a href="https://econsultancy.com/blog/11274-67-of-consumers-cite-slow-websites-as-the-main-cause-of-basket-abandonment/" style="text-decoration: none;"><span style="background-color: white; color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">shown</span></a><span style="font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;"> that an increase in performance leads to happier, more engaged users. Performance is something for everyone in the web ecosystem to care about--not just browser implementers, but also web authors. As developers of both top-level sites and embedded content make use of these new APIs, the result will be a faster web for everyone.</span></span></div> <br /> <span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;"><br /></span> <span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;">Posted by Rick Byers and Stefan Zager, Professional Jank Busters</span> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </script> <noscript> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Speed has been a top priority since Chrome's first release, and it's only gotten more important as developers continue to push the boundaries of interactive web experiences. While there are many performance optimizations Chrome can make without involving the developer, sometimes it's impossible for Chrome to execute as quickly as possible without more information. In </span><a href="http://blog.chromium.org/2016/04/chrome-51-beta-credential-management.html" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Chrome 51</span></a><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> we've introduced support for </span><a href="https://github.com/WICG/EventListenerOptions/blob/gh-pages/explainer.md" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">passive event listeners</span></a><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> and </span><a href="https://wicg.github.io/IntersectionObserver/" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Intersection Observer</span></a><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">, two emerging web standards that help developers create engaging, efficient experiences.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; white-space: pre-wrap;">Touch event listeners are often used on the web for custom scrolling experiences and user engagement analytics. They allow developers to register JavaScript to run when the user touches the screen, and give web apps the opportunity to cancel scrolling altogether. Without knowing in advance if the web app will cancel scrolling, Chrome needs to wait for this JavaScript to finish before scrolling the page itself. Over 80% of touch listeners don't cancel the scroll and unnecessarily delay scrolling by up to several seconds. This results in a large amount of jank where the page doesn't seem anchored to the user's finger.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;">Chrome 51 allows developers to proactively declare that an event listener won't prevent a scroll. While developers should continue to avoid long-running script to </span><a href="https://developers.google.com/web/tools/chrome-devtools/profile/evaluate-performance/rail?hl=en#response-respond-in-under-100ms" style="text-decoration: none;"><span style="color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">reduce all forms of jank</span></a><span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;">, this change eliminates the need to delay scrolling until the JavaScript completes. To learn more about passive event listeners and how to use them, check out the in-depth </span><a href="https://github.com/WICG/EventListenerOptions/blob/gh-pages/explainer.md" style="text-decoration: none;"><span style="color: #1155cc; font-family: "arial"; font-size: 13.333333333333332px; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">EventListenerOptions explainer</span></a><span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;">.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div class="separator" style="clear: both; text-align: center;"> <iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/65VMej8n23A/0.jpg" frameborder="0" height="366" src="https://www.youtube.com/embed/65VMej8n23A?feature=player_embedded" width="520"></iframe></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <br /></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: italic; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Touch scrolling on cnn.com unmodified (left) and with a planned site update to make touch listeners passive (right).</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"> <span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: italic; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <b style="font-weight: normal;"><br /></b> <br /> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: "arial"; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Another way web platform improvements can help developers reduce delays is take common operations that can't be implemented efficiently in JavaScript and instead build them natively into the browser. One prevalent example is heavy Javascript used to calculate whether an element is visible in the document's viewport or other scrolling container. This is useful for knowing whether a certain element was seen or when to dynamically load more content at the bottom of a page, but can cause annoying jank and unnecessary battery drain if run frequently on user interactions.</span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <br /></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div> <div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"> <span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Chrome 51 includes support for Intersection Observer, a new API to provide viewability information in a more efficient way. Sites can receive a callback whenever any element intersects a watched element or its children. The site no longer needs to implement this functionality with its own custom JavaScript, and gains the benefits of improved page load and scroll performance. For more information and implementation details, see the </span><a href="https://developers.google.com/web/updates/2016/04/intersectionobserver?hl=en" style="text-decoration: none;"><span style="background-color: transparent; color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Intersection Observer explainer</span></a><span style="background-color: transparent; color: black; font-family: Arial; font-size: 13.333333333333332px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">.</span></div> <span><br /></span> <span id="docs-internal-guid-fd99ea7e-77fd-142c-23b5-0c9371bdd27d"><br /><a href="http://googleresearch.blogspot.com/2009/06/speed-matters.html" style="text-decoration: none;"><span style="background-color: white; color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">Studies</span></a><span style="background-color: white; color: #222222; font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;"> </span><a href="http://engineroom.ft.com/2016/04/04/a-faster-ft-com/" style="text-decoration: none;"><span style="background-color: white; color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">have</span></a><span style="background-color: white; color: #222222; font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;"> </span><a href="https://econsultancy.com/blog/11274-67-of-consumers-cite-slow-websites-as-the-main-cause-of-basket-abandonment/" style="text-decoration: none;"><span style="background-color: white; color: #1155cc; font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">shown</span></a><span style="font-family: Arial; font-size: 13.333333333333332px; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;"> that an increase in performance leads to happier, more engaged users. Performance is something for everyone in the web ecosystem to care about--not just browser implementers, but also web authors. As developers of both top-level sites and embedded content make use of these new APIs, the result will be a faster web for everyone.</span></span></div> <br /> <span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;"><br /></span> <span style="font-family: "arial"; font-size: 13.333333333333332px; vertical-align: baseline; white-space: pre-wrap;">Posted by Rick Byers and Stefan Zager, Professional Jank Busters</span> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </noscript> </div> </div> <div class='share'> <span class='twitter-custom social-wrapper' data-href='http://twitter.com/share?text=Chromium Blog:New APIs to help developers improve scroll performance&url=https://blog.chromium.org/2016/05/new-apis-to-help-developers-improve.html&via=ChromiumDev'> <img alt='Share on Twitter' height='24' 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dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/contact%20picker'> contact picker </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/content%20indexing'> content indexing </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/cookies'> cookies </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/core%20web%20vitals'> core web vitals </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/csrf'> csrf </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/css'> css </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/cumulative%20layout%20shift'> cumulative layout shift </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/custom%20tabs'> custom tabs </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/dart'> dart </a> <span dir='ltr'> 8 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/dashboard'> dashboard </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/Data%20Saver'> Data Saver </a> <span dir='ltr'> 3 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/Data%20saver%20desktop%20extension'> Data saver desktop extension </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/day%202'> day 2 </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/deceptive%20installation'> deceptive installation </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/declarative%20net%20request%20api'> declarative net request api </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/design'> design </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/developer%20dashboard'> developer dashboard </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/Developer%20Program%20Policy'> Developer Program Policy </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/developer%20website'> developer website </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/devtools'> devtools </a> <span dir='ltr'> 13 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/digital%20event'> digital event </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/discoverability'> discoverability </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/DNS-over-HTTPS'> DNS-over-HTTPS </a> <span dir='ltr'> 4 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/DoH'> DoH </a> <span dir='ltr'> 4 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/emoji'> emoji </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/emscriptem'> emscriptem </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/enterprise'> enterprise </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/extensions'> extensions </a> <span dir='ltr'> 27 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/Fast%20badging'> Fast badging </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/faster%20web'> faster web </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/features'> features </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/feedback'> feedback </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/field%20data'> field data </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/first%20input%20delay'> first input delay </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/Follow'> Follow </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/fonts'> fonts </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/form%20controls'> form controls </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/frameworks'> frameworks </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/fugu'> fugu </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/fund'> fund </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/funding'> funding </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/gdd'> gdd </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/google%20earth'> google earth </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/google%20event'> google event </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/google%20io%202019'> google io 2019 </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/google%20web%20developer'> google web developer </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/googlechrome'> googlechrome </a> <span dir='ltr'> 12 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/harmful%20ads'> harmful ads </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/html5'> html5 </a> <span dir='ltr'> 11 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/HTTP%2F3'> HTTP/3 </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/HTTPS'> HTTPS </a> <span dir='ltr'> 4 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/iframes'> iframes </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/images'> images </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/incognito'> incognito </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/insecure%20forms'> insecure forms </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/intent%20to%20explain'> intent to explain </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/ios'> ios </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/ios%20Chrome'> ios Chrome </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/issue%20tracker'> issue tracker </a> <span dir='ltr'> 3 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/jank'> jank </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/javascript'> javascript </a> <span dir='ltr'> 5 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/lab%20data'> lab data </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/labelling'> labelling </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/largest%20contentful%20paint'> largest contentful paint </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/launch'> launch </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/lazy-loading'> lazy-loading </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/lighthouse'> lighthouse </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/linux'> linux </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/Lite%20Mode'> Lite Mode </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/Lite%20pages'> Lite pages </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/loading%20interventions'> loading interventions </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/loading%20optimizations'> loading optimizations </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/lock%20icon'> lock icon </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/long-tail'> long-tail </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/mac'> mac </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/manifest%20v3'> manifest v3 </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/metrics'> metrics </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/microsoft%20edge'> microsoft edge </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/mixed%20forms'> mixed forms </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/mobile'> mobile </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/na'> na </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/native%20client'> native client </a> <span dir='ltr'> 8 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/native%20file%20system'> native file system </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/New%20Features'> New Features </a> <span dir='ltr'> 5 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/notifications'> notifications </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/octane'> octane </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/open%20web'> open web </a> <span dir='ltr'> 4 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/origin%20trials'> origin trials </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/pagespeed%20insights'> pagespeed insights </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/pagespeedinsights'> pagespeedinsights </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/passwords'> passwords </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/payment%20handler'> payment handler </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/payment%20request'> payment request </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/payments'> payments </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/performance'> performance </a> <span dir='ltr'> 20 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/performance%20tools'> performance tools </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/permission%20UI'> permission UI </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/permissions'> permissions </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/play%20store'> play store </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/portals'> portals </a> <span dir='ltr'> 3 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/prefetching'> prefetching </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/privacy'> privacy </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/privacy%20sandbox'> privacy sandbox </a> <span dir='ltr'> 4 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/private%20prefetch%20proxy'> private prefetch proxy </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/profile%20guided%20optimization'> profile guided optimization </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/progressive%20web%20apps'> progressive web apps </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/Project%20Strobe'> Project Strobe </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/protection'> protection </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/pwa'> pwa </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/QUIC'> QUIC </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/quieter%20permissions'> quieter permissions </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/releases'> releases </a> <span dir='ltr'> 3 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/removals'> removals </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/rlz'> rlz </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/root%20program'> root program </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/safe%20browsing'> safe browsing </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/Secure%20DNS'> Secure DNS </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/security'> security </a> <span dir='ltr'> 36 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/site%20isolation'> site isolation </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/slow%20loading'> slow loading </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/sms%20receiver'> sms receiver </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/spam%20policy'> spam policy </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/spdy'> spdy </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/spectre'> spectre </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/speed'> speed </a> <span dir='ltr'> 4 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/ssl'> ssl </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/store%20listing'> store listing </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/strobe'> strobe </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/subscription%20pages'> subscription pages </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/suspicious%20site%20reporter%20extension'> suspicious site reporter extension </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/TCP'> TCP </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/the%20fast%20and%20the%20curious'> the fast and the curious </a> <span dir='ltr'> 23 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/TLS'> TLS </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/tools'> tools </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/tracing'> tracing </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/transparency'> transparency </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/trusted%20web%20activities'> trusted web activities </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/twa'> twa </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/user%20agent%20string'> user agent string </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/user%20data%20policy'> user data policy </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/v8'> v8 </a> <span dir='ltr'> 6 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/video'> video </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/wasm'> wasm </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web'> web </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web%20apps'> web apps </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web%20assembly'> web assembly </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web%20developers'> web developers </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web%20intents'> web intents </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web%20packaging'> web packaging </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web%20payments'> web payments </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web%20platform'> web platform </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web%20request%20api'> web request api </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web%20vitals'> web vitals </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web.dev'> web.dev </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web.dev%20live'> web.dev live </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/webapi'> webapi </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/webassembly'> webassembly </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/webaudio'> webaudio </a> <span dir='ltr'> 3 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/webgl'> webgl </a> <span dir='ltr'> 7 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/webkit'> webkit </a> <span dir='ltr'> 5 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/WebM'> WebM </a> <span dir='ltr'> 1 </span> </li> 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href='https://blog.chromium.org/2020/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2020/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2020/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2020/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i 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class=''> <a class='post-count-link' href='https://blog.chromium.org/2019/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2019/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2019/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2018/'> 2018 </a> </div> <div class='items'> <ul class='hierarchy'> 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class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2018/07/'> Jul </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2018/06/'> Jun </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2018/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2018/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2018/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2018/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2018/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2017/'> 2017 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2017/12/'> Dec </a> </div> <div class='items'> 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</ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2017/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate expanded'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy toggle-open'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2016/'> 2016 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2016/12/'> Dec </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' 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href='https://blog.chromium.org/2016/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2016/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2016/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2016/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2016/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> 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class=''> <a class='post-count-link' href='https://blog.chromium.org/2015/09/'> Sep </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2015/08/'> Aug </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2015/07/'> Jul </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2015/06/'> Jun </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2015/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> 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class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2014/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2014/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2014/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2013/'> 2013 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2013/12/'> Dec </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2013/11/'> Nov </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2013/10/'> Oct </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2013/09/'> Sep </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2013/08/'> Aug </a> </div> <div class='items'> </div> </li> 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class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2013/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2013/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2012/'> 2012 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2012/12/'> Dec </a> </div> 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class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2012/06/'> Jun </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2012/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2012/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2012/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2012/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2012/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2011/'> 2011 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2011/12/'> Dec </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2011/11/'> Nov </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2011/10/'> Oct </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2011/09/'> Sep </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2011/08/'> Aug </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2011/07/'> Jul </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2011/06/'> Jun </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2011/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2011/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2011/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2011/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2011/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2010/'> 2010 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2010/12/'> Dec </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2010/11/'> Nov </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2010/10/'> Oct </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2010/09/'> Sep </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2010/08/'> Aug </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2010/07/'> Jul </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2010/06/'> Jun </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div 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class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2009/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2009/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2009/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2008/'> 2008 </a> </div> <div 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style='margin-top: -16px;' width='92'/> </a> <ul> <li> <a href='//www.google.com/'> Google </a> </li> <li> <a href='//www.google.com/policies/privacy/'> Privacy </a> </li> <li> <a href='//www.google.com/policies/terms/'> Terms </a> </li> </ul> </div> </div> <script type='text/javascript'> //<![CDATA[ // Social sharing popups. var postEl = document.getElementsByClassName('social-wrapper'); var postCount = postEl.length; for(i=0; i<postCount;i++){ postEl[i].addEventListener("click", function(event){ var postUrl = this.getAttribute("data-href"); window.open( postUrl,'popUpWindow','height=500,width=500,left=10,top=10,resizable=yes,scrollbars=yes,toolbar=yes,menubar=no,location=no,directories=no,status=yes'); });} //]]> </script> <script type='text/javascript'> //<![CDATA[ var BreakpointHandler = function() { this.initted = false; this.isHomePage = false; this.isMobile = false; }; BreakpointHandler.prototype.finalizeSummary = function(summaryHtml, lastNode) { // Use $.trim for IE8 compatibility summaryHtml = $.trim(summaryHtml).replace(/(<br>|\s)+$/,''); if (lastNode.nodeType == 3) { var lastChar = summaryHtml.slice(-1); if (!lastChar.match(/[.”"?]/)) { if (!lastChar.match(/[A-Za-z]/)) { summaryHtml = summaryHtml.slice(0, -1); } summaryHtml += ' ...'; } } else if (lastNode.nodeType == 1 && (lastNode.nodeName == 'I' || lastNode.nodeName == 'A')) { summaryHtml += ' ...'; } return summaryHtml; }; BreakpointHandler.prototype.generateSummaryFromContent = function(content, numWords) { var seenWords = 0; var summaryHtml = ''; for (var i=0; i < content.childNodes.length; i++) { var node = content.childNodes[i]; var nodeText; if (node.nodeType == 1) { if (node.hasAttribute('data-about-pullquote')) { continue; } nodeText = node.textContent; if (nodeText === undefined) { // innerText for IE8 nodeText = node.innerText; } if (node.nodeName == 'DIV' || node.nodeName == 'B') { // Don't end early if we haven't seen enough words. if (seenWords < 10) { continue; } if (i > 0) { summaryHtml = this.finalizeSummary(summaryHtml, content.childNodes[i-1]); } break; } summaryHtml += node.outerHTML; } else if (node.nodeType == 3) { nodeText = node.nodeValue; summaryHtml += nodeText + ' '; } var words = nodeText.match(/\S+\s*/g); if (!words) { continue; } var remain = numWords - seenWords; if (words.length >= remain) { summaryHtml = this.finalizeSummary(summaryHtml, node); break; } seenWords += words.length; } return summaryHtml; }; BreakpointHandler.prototype.detect = function() { var match, pl = /\+/g, search = /([^&=]+)=?([^&]*)/g, decode = function (s) { return decodeURIComponent(s.replace(pl, " ")); }, query = window.location.search.substring(1); var urlParams = {}; while (match = search.exec(query)) urlParams[decode(match[1])] = decode(match[2]); this.isListPage = $('html').hasClass('list-page'); this.isMobile = urlParams['m'] === '1'; this.isHomePage = window.location.pathname == '/'; }; BreakpointHandler.prototype.initContent = function() { var self = this; $('.post').each(function(index) { var body = $(this).children('.post-body')[0]; var content = $(body).children('.post-content')[0]; $(content).addClass('post-original'); var data = $(content).children('script').html(); data = self.rewriteForSSL(data); // If exists, extract specified editor's preview. var match = data.match(/([\s\S]+?)<div data-is-preview.+?>([\s\S]+)<\/div>/m); if (match) { data = match[1]; } // Prevent big images from loading when they aren't needed. // This must be done as a pre-injection step, since image loading can't be // canceled once embedded into the DOM. if (self.isListPage && self.isMobile) { data = data.replace(/<(img|iframe) .+?>/g, ''); } // Insert template to be rendered as nodes. content.innerHTML = data; if (self.isListPage) { var summary = document.createElement('div'); $(summary).addClass('post-content'); $(summary).addClass('post-summary'); body.insertBefore(summary, content); if (match) { // Use provided summary. summary.innerHTML = match[2]; } else { // Generate a summary. // Summary generation relies on DOM, so it must occur after content is // inserted into the page. summary.innerHTML = self.generateSummaryFromContent(content, 30); } // Add read more link to summary. var titleAnchor = $(this).find('.title a')[0]; var link = titleAnchor.cloneNode(true); link.innerHTML = 'Read More'; $(link).addClass('read-more'); summary.appendChild(link); } }); // Firefox does not allow for proper styling of BR. if (navigator.userAgent.indexOf('Firefox') > -1) { $('.post-content br').replaceWith('<span class="space"></span>'); } $('.loading').removeClass('loading'); }; BreakpointHandler.prototype.process = function() { if (!this.initted) { var makeInsecureImageRegex = function(hosts) { var whitelist = hosts.join('|').replace(/\./g,'\\.'); // Normal image tags, plus input images (yes, this is possible!) return new RegExp('(<(img|input)[^>]+?src=("|\'))http:\/\/(' + whitelist +')', 'g'); }; this.sslImageRegex = 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