CINXE.COM
web.dev LIVE Day 1
<!doctype html> <html lang="en" dir="ltr"> <head> <meta name="google-signin-client-id" content="157101835696-ooapojlodmuabs2do2vuhhnf90bccmoi.apps.googleusercontent.com"> <meta name="google-signin-scope" content="profile email https://www.googleapis.com/auth/developerprofiles https://www.googleapis.com/auth/developerprofiles.award"> <meta property="og:site_name" content="web.dev"> <meta property="og:type" content="website"><meta name="theme-color" content="#3740ff"><meta charset="utf-8"> <meta content="IE=Edge" http-equiv="X-UA-Compatible"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="manifest" href="/_pwa/web/manifest.json" crossorigin="use-credentials"> <link rel="preconnect" href="//www.gstatic.com" crossorigin> <link rel="preconnect" href="//fonts.gstatic.com" crossorigin> <link rel="preconnect" href="//fonts.googleapis.com" crossorigin> <link rel="preconnect" href="//apis.google.com" crossorigin> <link rel="preconnect" href="//www.google-analytics.com" crossorigin><link rel="stylesheet" href="//fonts.googleapis.com/css?family=Google+Sans:400,500|Roboto:400,400italic,500,500italic,700,700italic|Roboto+Mono:400,500,700&display=swap"> <link rel="stylesheet" href="//fonts.googleapis.com/css2?family=Material+Icons&family=Material+Symbols+Outlined&display=block"><link rel="stylesheet" href="https://www.gstatic.com/devrel-devsite/prod/v870e399c64f7c43c99a3043db4b3a74327bb93d0914e84a0c3dba90bbfd67625/web/css/app.css"> <link rel="stylesheet" href="https://www.gstatic.com/devrel-devsite/prod/v870e399c64f7c43c99a3043db4b3a74327bb93d0914e84a0c3dba90bbfd67625/web/css/dark-theme.css" disabled> <link rel="shortcut icon" href="https://www.gstatic.com/devrel-devsite/prod/v870e399c64f7c43c99a3043db4b3a74327bb93d0914e84a0c3dba90bbfd67625/web/images/favicon.png"> <link rel="apple-touch-icon" href="https://www.gstatic.com/devrel-devsite/prod/v870e399c64f7c43c99a3043db4b3a74327bb93d0914e84a0c3dba90bbfd67625/web/images/touchicon-180.png"><link rel="canonical" href="https://web.dev/shows/web-dev-live-day-1"><link rel="search" type="application/opensearchdescription+xml" title="web.dev" href="https://web.dev/s/opensearch.xml"> <link rel="alternate" hreflang="en" href="https://web.dev/shows/web-dev-live-day-1" /><link rel="alternate" hreflang="x-default" href="https://web.dev/shows/web-dev-live-day-1" /><link rel="alternate" hreflang="ar" href="https://web.dev/shows/web-dev-live-day-1?hl=ar" /><link rel="alternate" hreflang="bn" href="https://web.dev/shows/web-dev-live-day-1?hl=bn" /><link rel="alternate" hreflang="zh-Hans" href="https://web.dev/shows/web-dev-live-day-1?hl=zh-cn" /><link rel="alternate" hreflang="zh-Hant" href="https://web.dev/shows/web-dev-live-day-1?hl=zh-tw" /><link rel="alternate" hreflang="fa" href="https://web.dev/shows/web-dev-live-day-1?hl=fa" /><link rel="alternate" hreflang="fr" href="https://web.dev/shows/web-dev-live-day-1?hl=fr" /><link rel="alternate" hreflang="de" href="https://web.dev/shows/web-dev-live-day-1?hl=de" /><link rel="alternate" hreflang="he" href="https://web.dev/shows/web-dev-live-day-1?hl=he" /><link rel="alternate" hreflang="hi" href="https://web.dev/shows/web-dev-live-day-1?hl=hi" /><link rel="alternate" hreflang="id" href="https://web.dev/shows/web-dev-live-day-1?hl=id" /><link rel="alternate" hreflang="it" href="https://web.dev/shows/web-dev-live-day-1?hl=it" /><link rel="alternate" hreflang="ja" href="https://web.dev/shows/web-dev-live-day-1?hl=ja" /><link rel="alternate" hreflang="ko" href="https://web.dev/shows/web-dev-live-day-1?hl=ko" /><link rel="alternate" hreflang="pl" href="https://web.dev/shows/web-dev-live-day-1?hl=pl" /><link rel="alternate" hreflang="pt-BR" href="https://web.dev/shows/web-dev-live-day-1?hl=pt-br" /><link rel="alternate" hreflang="ru" href="https://web.dev/shows/web-dev-live-day-1?hl=ru" /><link rel="alternate" hreflang="es-419" href="https://web.dev/shows/web-dev-live-day-1?hl=es-419" /><link rel="alternate" hreflang="th" href="https://web.dev/shows/web-dev-live-day-1?hl=th" /><link rel="alternate" hreflang="tr" href="https://web.dev/shows/web-dev-live-day-1?hl=tr" /><link rel="alternate" hreflang="vi" href="https://web.dev/shows/web-dev-live-day-1?hl=vi" /><link rel="alternate" hreflang="en-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1" /><link rel="alternate" hreflang="x-default" href="https://web.developers.google.cn/shows/web-dev-live-day-1" /><link rel="alternate" hreflang="ar-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1?hl=ar" /><link rel="alternate" hreflang="bn-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1?hl=bn" /><link rel="alternate" hreflang="zh-Hans-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1?hl=zh-cn" /><link rel="alternate" hreflang="zh-Hant-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1?hl=zh-tw" /><link rel="alternate" hreflang="fa-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1?hl=fa" /><link rel="alternate" hreflang="fr-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1?hl=fr" /><link rel="alternate" hreflang="de-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1?hl=de" /><link rel="alternate" hreflang="he-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1?hl=he" /><link rel="alternate" hreflang="hi-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1?hl=hi" /><link rel="alternate" hreflang="id-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1?hl=id" /><link rel="alternate" hreflang="it-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1?hl=it" /><link rel="alternate" hreflang="ja-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1?hl=ja" /><link rel="alternate" hreflang="ko-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1?hl=ko" /><link rel="alternate" hreflang="pl-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1?hl=pl" /><link rel="alternate" hreflang="pt-BR-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1?hl=pt-br" /><link rel="alternate" hreflang="ru-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1?hl=ru" /><link rel="alternate" hreflang="es-419-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1?hl=es-419" /><link rel="alternate" hreflang="th-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1?hl=th" /><link rel="alternate" hreflang="tr-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1?hl=tr" /><link rel="alternate" hreflang="vi-cn" href="https://web.developers.google.cn/shows/web-dev-live-day-1?hl=vi" /><title>web.dev LIVE Day 1</title> <meta property="og:title" content="web.dev LIVE Day 1"><meta name="description" content="Missed web.dev LIVE? We've got you covered. Watch the talks from the web.dev LIVE 2020 event"> <meta property="og:description" content="Missed web.dev LIVE? We've got you covered. Watch the talks from the web.dev LIVE 2020 event"><meta property="og:url" content="https://web.dev/shows/web-dev-live-day-1"><meta property="og:locale" content="en"><script type="application/ld+json"> { "@context": "https://schema.org", "@type": "Article", "headline": "web.dev LIVE Day 1" } </script> <link rel="stylesheet" href="/extras.css"></head> <body class="" template="landing" theme="web-theme" type="article" appearance layout="full" pending> <devsite-progress type="indeterminate" id="app-progress"></devsite-progress> <section class="devsite-wrapper"> <devsite-cookie-notification-bar></devsite-cookie-notification-bar><devsite-header role="banner"> <div class="devsite-header--inner nocontent"> <div class="devsite-top-logo-row-wrapper-wrapper"> <div class="devsite-top-logo-row-wrapper"> <div class="devsite-top-logo-row"> <button type="button" id="devsite-hamburger-menu" class="devsite-header-icon-button button-flat material-icons gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Navigation menu button" visually-hidden aria-label="Open menu"> </button> <div class="devsite-product-name-wrapper"> <a href="/" class="devsite-site-logo-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Site logo" track-type="globalNav" track-name="webDev" track-metadata-position="nav" track-metadata-eventDetail="nav"> <picture> <source srcset="https://www.gstatic.com/devrel-devsite/prod/v870e399c64f7c43c99a3043db4b3a74327bb93d0914e84a0c3dba90bbfd67625/web/images/lockup-dark-theme.svg" media="(prefers-color-scheme: dark)" class="devsite-dark-theme" alt="web.dev"> <img src="https://www.gstatic.com/devrel-devsite/prod/v870e399c64f7c43c99a3043db4b3a74327bb93d0914e84a0c3dba90bbfd67625/web/images/lockup.svg" class="devsite-site-logo" alt="web.dev"> </picture> </a> <span class="devsite-product-name"> <ul class="devsite-breadcrumb-list" > <li class="devsite-breadcrumb-item "> </li> </ul> </span> </div> <div class="devsite-top-logo-row-middle"> <div class="devsite-header-upper-tabs"> <devsite-tabs class="upper-tabs"> <nav class="devsite-tabs-wrapper" aria-label="Upper tabs"> <tab > <a href="https://web.dev/about" track-metadata-eventdetail="https://web.dev/about" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - about" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: About" track-name="about" > About </a> </tab> <tab > <a href="https://web.dev/blog" track-metadata-eventdetail="https://web.dev/blog" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - blog" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Blog" track-name="blog" > Blog </a> </tab> <tab > <a href="https://web.dev/articles" track-metadata-eventdetail="https://web.dev/articles" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - articles" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Articles" track-name="articles" > Articles </a> </tab> <tab > <a href="https://web.dev/learn" track-metadata-eventdetail="https://web.dev/learn" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - learn" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Learn" track-name="learn" > Learn </a> </tab> <tab > <a href="https://web.dev/explore" track-metadata-eventdetail="https://web.dev/explore" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - explore" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Explore" track-name="explore" > Explore </a> </tab> <tab > <a href="https://web.dev/patterns" track-metadata-eventdetail="https://web.dev/patterns" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - patterns" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Patterns" track-name="patterns" > Patterns </a> </tab> <tab > <a href="https://web.dev/case-studies" track-metadata-eventdetail="https://web.dev/case-studies" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - case studies" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Case studies" track-name="case studies" > Case studies </a> </tab> <tab class="devsite-active"> <a href="https://web.dev/shows" track-metadata-eventdetail="https://web.dev/shows" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - shows" track-metadata-module="primary nav" aria-label="Shows, selected" data-category="Site-Wide Custom Events" data-label="Tab: Shows" track-name="shows" > Shows </a> </tab> </nav> </devsite-tabs> </div> <devsite-search enable-signin enable-search enable-suggestions enable-query-completion project-name="web.dev LIVE Day 1" tenant-name="web.dev" > <form class="devsite-search-form" action="https://web.dev/s/results" method="GET"> <div class="devsite-search-container"> <button type="button" search-open class="devsite-search-button devsite-header-icon-button button-flat material-icons" aria-label="Open search"></button> <div class="devsite-searchbox"> <input aria-activedescendant="" aria-autocomplete="list" aria-label="Search" aria-expanded="false" aria-haspopup="listbox" autocomplete="off" class="devsite-search-field devsite-search-query" name="q" placeholder="Search" role="combobox" type="text" value="" > <div class="devsite-search-image material-icons" aria-hidden="true"> </div> <div class="devsite-search-shortcut-icon-container" aria-hidden="true"> <kbd class="devsite-search-shortcut-icon">/</kbd> </div> </div> </div> </form> <button type="button" search-close class="devsite-search-button devsite-header-icon-button button-flat material-icons" aria-label="Close search"></button> </devsite-search> </div> <devsite-appearance-selector></devsite-appearance-selector> <devsite-language-selector> <ul role="presentation"> <li role="presentation"> <a role="menuitem" lang="en" >English</a> </li> <li role="presentation"> <a role="menuitem" lang="de" >Deutsch</a> </li> <li role="presentation"> <a role="menuitem" lang="es_419" >Español – América Latina</a> </li> <li role="presentation"> <a role="menuitem" lang="fr" >Français</a> </li> <li role="presentation"> <a role="menuitem" lang="id" >Indonesia</a> </li> <li role="presentation"> <a role="menuitem" lang="it" >Italiano</a> </li> <li role="presentation"> <a role="menuitem" lang="pl" >Polski</a> </li> <li role="presentation"> <a role="menuitem" lang="pt_br" >Português – Brasil</a> </li> <li role="presentation"> <a role="menuitem" lang="vi" >Tiếng Việt</a> </li> <li role="presentation"> <a role="menuitem" lang="tr" >Türkçe</a> </li> <li role="presentation"> <a role="menuitem" lang="ru" >Русский</a> </li> <li role="presentation"> <a role="menuitem" lang="he" >עברית</a> </li> <li role="presentation"> <a role="menuitem" lang="ar" >العربيّة</a> </li> <li role="presentation"> <a role="menuitem" lang="fa" >فارسی</a> </li> <li role="presentation"> <a role="menuitem" lang="hi" >हिंदी</a> </li> <li role="presentation"> <a role="menuitem" lang="bn" >বাংলা</a> </li> <li role="presentation"> <a role="menuitem" lang="th" >ภาษาไทย</a> </li> <li role="presentation"> <a role="menuitem" lang="zh_cn" >中文 – 简体</a> </li> <li role="presentation"> <a role="menuitem" lang="zh_tw" >中文 – 繁體</a> </li> <li role="presentation"> <a role="menuitem" lang="ja" >日本語</a> </li> <li role="presentation"> <a role="menuitem" lang="ko" >한국어</a> </li> </ul> </devsite-language-selector> <devsite-user enable-profiles id="devsite-user"> <span class="button devsite-top-button" aria-hidden="true" visually-hidden>Sign in</span> </devsite-user> </div> </div> </div> <div class="devsite-collapsible-section "> <div class="devsite-header-background"> <div class="devsite-product-id-row" > <div class="devsite-product-description-row"> <ul class="devsite-breadcrumb-list" > <li class="devsite-breadcrumb-item "> <a href="https://web.dev/shows" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Lower Header" data-value="1" track-type="globalNav" track-name="breadcrumb" track-metadata-position="1" track-metadata-eventdetail="" > Shows </a> </li> </ul> </div> </div> <div class="devsite-doc-set-nav-row"> <devsite-tabs class="lower-tabs"> <nav class="devsite-tabs-wrapper" aria-label="Lower tabs"> <tab > <a href="https://web.dev/shows/this-is-baseline" track-metadata-eventdetail="https://web.dev/shows/this-is-baseline" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - this is baseline" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: This is Baseline" track-name="this is baseline" > This is Baseline </a> </tab> <tab > <a href="https://web.dev/shows/designing-in-the-browser" track-metadata-eventdetail="https://web.dev/shows/designing-in-the-browser" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - designing in the browser" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Designing in the Browser" track-name="designing in the browser" > Designing in the Browser </a> </tab> <tab > <a href="https://web.dev/shows/gui-challenges" track-metadata-eventdetail="https://web.dev/shows/gui-challenges" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - gui challenges" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: GUI Challenges" track-name="gui challenges" > GUI Challenges </a> </tab> <tab > <a href="https://web.dev/shows/http-203" track-metadata-eventdetail="https://web.dev/shows/http-203" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - http 203" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: HTTP 203" track-name="http 203" > HTTP 203 </a> </tab> <tab > <a href="https://web.dev/shows/mother-language-day" track-metadata-eventdetail="https://web.dev/shows/mother-language-day" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - mother language day" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Mother Language Day" track-name="mother language day" > Mother Language Day </a> </tab> <tab class="devsite-active"> <a href="https://web.dev/shows/web-dev-live-day-1" track-metadata-eventdetail="https://web.dev/shows/web-dev-live-day-1" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - web.dev live day 1" track-metadata-module="primary nav" aria-label="web.dev LIVE Day 1, selected" data-category="Site-Wide Custom Events" data-label="Tab: web.dev LIVE Day 1" track-name="web.dev live day 1" > web.dev LIVE Day 1 </a> </tab> <tab > <a href="https://web.dev/shows/web-dev-live-day-2" track-metadata-eventdetail="https://web.dev/shows/web-dev-live-day-2" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - web.dev live day 2" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: web.dev LIVE Day 2" track-name="web.dev live day 2" > web.dev LIVE Day 2 </a> </tab> <tab > <a href="https://web.dev/shows/web-dev-live-day-3" track-metadata-eventdetail="https://web.dev/shows/web-dev-live-day-3" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - web.dev live day 3" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: web.dev LIVE Day 3" track-name="web.dev live day 3" > web.dev LIVE Day 3 </a> </tab> </nav> </devsite-tabs> </div> </div> </div> </div> </devsite-header> <devsite-book-nav scrollbars hidden> <div class="devsite-book-nav-filter" hidden> <span class="filter-list-icon material-icons" aria-hidden="true"></span> <input type="text" placeholder="Filter" aria-label="Type to filter" role="searchbox"> <span class="filter-clear-button hidden" data-title="Clear filter" aria-label="Clear filter" role="button" tabindex="0"></span> </div> <nav class="devsite-book-nav devsite-nav nocontent" aria-label="Side menu"> <div class="devsite-mobile-header"> <button type="button" id="devsite-close-nav" class="devsite-header-icon-button button-flat material-icons gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Close navigation" aria-label="Close navigation"> </button> <div class="devsite-product-name-wrapper"> <a href="/" class="devsite-site-logo-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Site logo" track-type="globalNav" track-name="webDev" track-metadata-position="nav" track-metadata-eventDetail="nav"> <picture> <source srcset="https://www.gstatic.com/devrel-devsite/prod/v870e399c64f7c43c99a3043db4b3a74327bb93d0914e84a0c3dba90bbfd67625/web/images/lockup-dark-theme.svg" media="(prefers-color-scheme: dark)" class="devsite-dark-theme" alt="web.dev"> <img src="https://www.gstatic.com/devrel-devsite/prod/v870e399c64f7c43c99a3043db4b3a74327bb93d0914e84a0c3dba90bbfd67625/web/images/lockup.svg" class="devsite-site-logo" alt="web.dev"> </picture> </a> <span class="devsite-product-name"> <ul class="devsite-breadcrumb-list" > <li class="devsite-breadcrumb-item "> </li> </ul> </span> </div> </div> <div class="devsite-book-nav-wrapper"> <div class="devsite-mobile-nav-top"> <ul class="devsite-nav-list"> <li class="devsite-nav-item"> <a href="/about" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: About" track-name="about" data-category="Site-Wide Custom Events" data-label="Responsive Tab: About" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > About </span> </a> </li> <li class="devsite-nav-item"> <a href="/blog" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Blog" track-name="blog" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Blog" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Blog </span> </a> </li> <li class="devsite-nav-item"> <a href="/articles" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Articles" track-name="articles" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Articles" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Articles </span> </a> </li> <li class="devsite-nav-item"> <a href="/learn" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Learn" track-name="learn" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Learn" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Learn </span> </a> </li> <li class="devsite-nav-item"> <a href="/explore" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Explore" track-name="explore" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Explore" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Explore </span> </a> </li> <li class="devsite-nav-item"> <a href="/patterns" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Patterns" track-name="patterns" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Patterns" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Patterns </span> </a> </li> <li class="devsite-nav-item"> <a href="/case-studies" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Case studies" track-name="case studies" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Case studies" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Case studies </span> </a> </li> <li class="devsite-nav-item"> <a href="/shows" class="devsite-nav-title gc-analytics-event devsite-nav-active" data-category="Site-Wide Custom Events" data-label="Tab: Shows" track-name="shows" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Shows" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Shows </span> </a> <ul class="devsite-nav-responsive-tabs"> <li class="devsite-nav-item"> <a href="/shows/this-is-baseline" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: This is Baseline" track-name="this is baseline" data-category="Site-Wide Custom Events" data-label="Responsive Tab: This is Baseline" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > This is Baseline </span> </a> </li> <li class="devsite-nav-item"> <a href="/shows/designing-in-the-browser" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Designing in the Browser" track-name="designing in the browser" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Designing in the Browser" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Designing in the Browser </span> </a> </li> <li class="devsite-nav-item"> <a href="/shows/gui-challenges" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: GUI Challenges" track-name="gui challenges" data-category="Site-Wide Custom Events" data-label="Responsive Tab: GUI Challenges" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > GUI Challenges </span> </a> </li> <li class="devsite-nav-item"> <a href="/shows/http-203" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: HTTP 203" track-name="http 203" data-category="Site-Wide Custom Events" data-label="Responsive Tab: HTTP 203" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > HTTP 203 </span> </a> </li> <li class="devsite-nav-item"> <a href="/shows/mother-language-day" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Mother Language Day" track-name="mother language day" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Mother Language Day" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Mother Language Day </span> </a> </li> <li class="devsite-nav-item"> <a href="/shows/web-dev-live-day-1" class="devsite-nav-title gc-analytics-event devsite-nav-active" data-category="Site-Wide Custom Events" data-label="Tab: web.dev LIVE Day 1" track-name="web.dev live day 1" data-category="Site-Wide Custom Events" data-label="Responsive Tab: web.dev LIVE Day 1" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > web.dev LIVE Day 1 </span> </a> </li> <li class="devsite-nav-item"> <a href="/shows/web-dev-live-day-2" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: web.dev LIVE Day 2" track-name="web.dev live day 2" data-category="Site-Wide Custom Events" data-label="Responsive Tab: web.dev LIVE Day 2" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > web.dev LIVE Day 2 </span> </a> </li> <li class="devsite-nav-item"> <a href="/shows/web-dev-live-day-3" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: web.dev LIVE Day 3" track-name="web.dev live day 3" data-category="Site-Wide Custom Events" data-label="Responsive Tab: web.dev LIVE Day 3" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > web.dev LIVE Day 3 </span> </a> </li> </ul> </li> </ul> </div> </div> </nav> </devsite-book-nav> <section id="gc-wrapper"> <main role="main" class="devsite-main-content" > <div class="devsite-sidebar"> <div class="devsite-sidebar-content"> <devsite-toc class="devsite-nav" role="navigation" aria-label="On this page" depth="2" scrollbars disabled></devsite-toc> <devsite-recommendations-sidebar class="nocontent devsite-nav"> </devsite-recommendations-sidebar> </div> </div> <devsite-content> <article class="devsite-article"> <div class="devsite-article-meta nocontent" role="navigation"> <ul class="devsite-breadcrumb-list" aria-label="Breadcrumb"> <li class="devsite-breadcrumb-item "> <a href="https://web.dev/" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="1" track-type="globalNav" track-name="breadcrumb" track-metadata-position="1" track-metadata-eventdetail="" > Home </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" aria-hidden="true"></div> <a href="https://web.dev/shows" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="2" track-type="globalNav" track-name="breadcrumb" track-metadata-position="2" track-metadata-eventdetail="Shows" > Shows </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" aria-hidden="true"></div> <a href="https://web.dev/shows/web-dev-live-day-1" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="3" track-type="globalNav" track-name="breadcrumb" track-metadata-position="3" track-metadata-eventdetail="web.dev LIVE Day 1" > web.dev LIVE Day 1 </a> </li> </ul> </div> <devsite-feature-tooltip ack-key="AckCollectionsBookmarkTooltipDismiss" analytics-category="Site-Wide Custom Events" analytics-action-show="Callout Profile displayed" analytics-action-close="Callout Profile dismissed" analytics-label="Create Collection Callout" class="devsite-page-bookmark-tooltip nocontent" dismiss-button="true" id="devsite-collections-dropdown" dismiss-button-text="Dismiss" close-button-text="Got it"> <devsite-bookmark></devsite-bookmark> <span slot="popout-heading"> Stay organized with collections </span> <span slot="popout-contents"> Save and categorize content based on your preferences. </span> </devsite-feature-tooltip> <devsite-toc class="devsite-nav" depth="2" devsite-toc-embedded disabled> </devsite-toc> <div class="devsite-article-body clearfix "> <section class="devsite-landing-row devsite-landing-row-1-up" header-position="top" > <div class="devsite-landing-row-inner"> <div class="devsite-landing-row-group"> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <h3 id="webdev-live-day-1" data-text="web.dev LIVE Day 1" class="hide-from-toc no-link" tabindex="0"> web.dev LIVE Day 1 </h3> <div class="devsite-landing-row-item-description-content"> Missed web.dev LIVE? We've got you covered. Watch the talks from the web.dev LIVE 2020 event on Youtube (<a href="/shows/web-dev-live-day-2">Day 2</a>, <a href="/shows/web-dev-live-day-3">Day 3</a>) </div> </div> </div> </div> </div> </div> </section> <section class="devsite-landing-row devsite-landing-row-3-up devsite-landing-row-cards" header-position="top" > <div class="devsite-landing-row-inner"> <div class="devsite-landing-row-group"> <div class="devsite-landing-row-item" description-position="bottom" > <div class="devsite-landing-row-item-media "> <figure class="devsite-landing-row-item-image"> <a href="https://web.dev/shows/web-dev-live-day-1/t8YBZLjL-KU"> <picture> <img alt="" src="https://web.dev/static/image/youtube/t8YBZLjL-KU.jpg" srcset="https://web.dev/static/image/youtube/t8YBZLjL-KU_36.jpg 36w,https://web.dev/static/image/youtube/t8YBZLjL-KU_48.jpg 48w,https://web.dev/static/image/youtube/t8YBZLjL-KU_72.jpg 72w,https://web.dev/static/image/youtube/t8YBZLjL-KU_96.jpg 96w,https://web.dev/static/image/youtube/t8YBZLjL-KU_480.jpg 480w,https://web.dev/static/image/youtube/t8YBZLjL-KU_720.jpg 720w,https://web.dev/static/image/youtube/t8YBZLjL-KU_856.jpg 856w,https://web.dev/static/image/youtube/t8YBZLjL-KU_960.jpg 960w,https://web.dev/static/image/youtube/t8YBZLjL-KU_1440.jpg 1440w,https://web.dev/static/image/youtube/t8YBZLjL-KU_1920.jpg 1920w,https://web.dev/static/image/youtube/t8YBZLjL-KU_2880.jpg 2880w" sizes="(max-width: 840px) 50vw, 464px" loading="lazy" > </picture> </a> </figure> </div> <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <h3 id="core-web-vitals-in-the-devtools-timeline" data-text="Core Web Vitals in the DevTools timeline" class="hide-from-toc no-link" tabindex="0"> <a href="https://web.dev/shows/web-dev-live-day-1/t8YBZLjL-KU"> Core Web Vitals in the DevTools timeline </a> </h3> <div class="devsite-landing-row-item-description-content"> The Core Web Vitals are a great way to assess the UX impact of page load performance. In this talk, we cover what the vitals are, where t... </div> </div> </div> </div> <div class="devsite-landing-row-item" description-position="bottom" > <div class="devsite-landing-row-item-media "> <figure class="devsite-landing-row-item-image"> <a href="https://web.dev/shows/web-dev-live-day-1/nOEXIcMdr_g"> <picture> <img alt="" src="https://web.dev/static/image/youtube/nOEXIcMdr_g.jpg" srcset="https://web.dev/static/image/youtube/nOEXIcMdr_g_36.jpg 36w,https://web.dev/static/image/youtube/nOEXIcMdr_g_48.jpg 48w,https://web.dev/static/image/youtube/nOEXIcMdr_g_72.jpg 72w,https://web.dev/static/image/youtube/nOEXIcMdr_g_96.jpg 96w,https://web.dev/static/image/youtube/nOEXIcMdr_g_480.jpg 480w,https://web.dev/static/image/youtube/nOEXIcMdr_g_720.jpg 720w,https://web.dev/static/image/youtube/nOEXIcMdr_g_856.jpg 856w,https://web.dev/static/image/youtube/nOEXIcMdr_g_960.jpg 960w,https://web.dev/static/image/youtube/nOEXIcMdr_g_1440.jpg 1440w,https://web.dev/static/image/youtube/nOEXIcMdr_g_1920.jpg 1920w,https://web.dev/static/image/youtube/nOEXIcMdr_g_2880.jpg 2880w" sizes="(max-width: 840px) 50vw, 464px" loading="lazy" > </picture> </a> </figure> </div> <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <h3 id="workerized-js-made-easy" data-text="Workerized JS made easy" class="hide-from-toc no-link" tabindex="0"> <a href="https://web.dev/shows/web-dev-live-day-1/nOEXIcMdr_g"> Workerized JS made easy </a> </h3> <div class="devsite-landing-row-item-description-content"> When JavaScript lives in a Worker, it runs in a separate thread. Thus, it can't block the browser from creating smooth user experiences! ... </div> </div> </div> </div> <div class="devsite-landing-row-item" description-position="bottom" > <div class="devsite-landing-row-item-media "> <figure class="devsite-landing-row-item-image"> <a href="https://web.dev/shows/web-dev-live-day-1/hBKZnaIMm4M"> <picture> <img alt="" src="https://web.dev/static/image/youtube/hBKZnaIMm4M.jpg" srcset="https://web.dev/static/image/youtube/hBKZnaIMm4M_36.jpg 36w,https://web.dev/static/image/youtube/hBKZnaIMm4M_48.jpg 48w,https://web.dev/static/image/youtube/hBKZnaIMm4M_72.jpg 72w,https://web.dev/static/image/youtube/hBKZnaIMm4M_96.jpg 96w,https://web.dev/static/image/youtube/hBKZnaIMm4M_480.jpg 480w,https://web.dev/static/image/youtube/hBKZnaIMm4M_720.jpg 720w,https://web.dev/static/image/youtube/hBKZnaIMm4M_856.jpg 856w,https://web.dev/static/image/youtube/hBKZnaIMm4M_960.jpg 960w,https://web.dev/static/image/youtube/hBKZnaIMm4M_1440.jpg 1440w,https://web.dev/static/image/youtube/hBKZnaIMm4M_1920.jpg 1920w,https://web.dev/static/image/youtube/hBKZnaIMm4M_2880.jpg 2880w" sizes="(max-width: 840px) 50vw, 464px" loading="lazy" > </picture> </a> </figure> </div> <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <h3 id="implementing-structured-data-with-javascript" data-text="Implementing structured data with JavaScript" class="hide-from-toc no-link" tabindex="0"> <a href="https://web.dev/shows/web-dev-live-day-1/hBKZnaIMm4M"> Implementing structured data with JavaScript </a> </h3> <div class="devsite-landing-row-item-description-content"> If you are building a great website with JavaScript, you want it to stand out in Google Search, too. To be eligible for rich results, you... </div> </div> </div> </div> <div class="devsite-landing-row-item" description-position="bottom" > <div class="devsite-landing-row-item-media "> <figure class="devsite-landing-row-item-image"> <a href="https://web.dev/shows/web-dev-live-day-1/himvKu12YCY"> <picture> <img alt="" src="https://web.dev/static/image/youtube/himvKu12YCY.jpg" srcset="https://web.dev/static/image/youtube/himvKu12YCY_36.jpg 36w,https://web.dev/static/image/youtube/himvKu12YCY_48.jpg 48w,https://web.dev/static/image/youtube/himvKu12YCY_72.jpg 72w,https://web.dev/static/image/youtube/himvKu12YCY_96.jpg 96w,https://web.dev/static/image/youtube/himvKu12YCY_480.jpg 480w,https://web.dev/static/image/youtube/himvKu12YCY_720.jpg 720w,https://web.dev/static/image/youtube/himvKu12YCY_856.jpg 856w,https://web.dev/static/image/youtube/himvKu12YCY_960.jpg 960w,https://web.dev/static/image/youtube/himvKu12YCY_1440.jpg 1440w,https://web.dev/static/image/youtube/himvKu12YCY_1920.jpg 1920w,https://web.dev/static/image/youtube/himvKu12YCY_2880.jpg 2880w" sizes="(max-width: 840px) 50vw, 464px" loading="lazy" > </picture> </a> </figure> </div> <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <h3 id="debugging-javascript-seo-issues" data-text="Debugging JavaScript SEO issues" class="hide-from-toc no-link" tabindex="0"> <a href="https://web.dev/shows/web-dev-live-day-1/himvKu12YCY"> Debugging JavaScript SEO issues </a> </h3> <div class="devsite-landing-row-item-description-content"> Diagnosing common JavaScript SEO issues and helpful steps to debug them! </div> </div> </div> </div> <div class="devsite-landing-row-item" description-position="bottom" > <div class="devsite-landing-row-item-media "> <figure class="devsite-landing-row-item-image"> <a href="https://web.dev/shows/web-dev-live-day-1/2QWO78U43FU"> <picture> <img alt="" src="https://web.dev/static/image/youtube/2QWO78U43FU.jpg" srcset="https://web.dev/static/image/youtube/2QWO78U43FU_36.jpg 36w,https://web.dev/static/image/youtube/2QWO78U43FU_48.jpg 48w,https://web.dev/static/image/youtube/2QWO78U43FU_72.jpg 72w,https://web.dev/static/image/youtube/2QWO78U43FU_96.jpg 96w,https://web.dev/static/image/youtube/2QWO78U43FU_480.jpg 480w,https://web.dev/static/image/youtube/2QWO78U43FU_720.jpg 720w,https://web.dev/static/image/youtube/2QWO78U43FU_856.jpg 856w,https://web.dev/static/image/youtube/2QWO78U43FU_960.jpg 960w,https://web.dev/static/image/youtube/2QWO78U43FU_1440.jpg 1440w,https://web.dev/static/image/youtube/2QWO78U43FU_1920.jpg 1920w,https://web.dev/static/image/youtube/2QWO78U43FU_2880.jpg 2880w" sizes="(max-width: 840px) 50vw, 464px" loading="lazy" > </picture> </a> </figure> </div> <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <h3 id="amp-at-your-service" data-text="AMP at your service" class="hide-from-toc no-link" tabindex="0"> <a href="https://web.dev/shows/web-dev-live-day-1/2QWO78U43FU"> AMP at your service </a> </h3> <div class="devsite-landing-row-item-description-content"> Naina and Sebastian discuss how AMP makes web development less painful and why it's time to move away from paired AMP. </div> </div> </div> </div> <div class="devsite-landing-row-item" description-position="bottom" > <div class="devsite-landing-row-item-media "> <figure class="devsite-landing-row-item-image"> <a href="https://web.dev/shows/web-dev-live-day-1/MxBCPc7bQvM"> <picture> <img alt="" src="https://web.dev/static/image/youtube/MxBCPc7bQvM.jpg" srcset="https://web.dev/static/image/youtube/MxBCPc7bQvM_36.jpg 36w,https://web.dev/static/image/youtube/MxBCPc7bQvM_48.jpg 48w,https://web.dev/static/image/youtube/MxBCPc7bQvM_72.jpg 72w,https://web.dev/static/image/youtube/MxBCPc7bQvM_96.jpg 96w,https://web.dev/static/image/youtube/MxBCPc7bQvM_480.jpg 480w,https://web.dev/static/image/youtube/MxBCPc7bQvM_720.jpg 720w,https://web.dev/static/image/youtube/MxBCPc7bQvM_856.jpg 856w,https://web.dev/static/image/youtube/MxBCPc7bQvM_960.jpg 960w,https://web.dev/static/image/youtube/MxBCPc7bQvM_1440.jpg 1440w,https://web.dev/static/image/youtube/MxBCPc7bQvM_1920.jpg 1920w,https://web.dev/static/image/youtube/MxBCPc7bQvM_2880.jpg 2880w" sizes="(max-width: 840px) 50vw, 464px" loading="lazy" > </picture> </a> </figure> </div> <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <h3 id="how-to-analyze-your-javascript-bundles" data-text="How to analyze your JavaScript bundles" class="hide-from-toc no-link" tabindex="0"> <a href="https://web.dev/shows/web-dev-live-day-1/MxBCPc7bQvM"> How to analyze your JavaScript bundles </a> </h3> <div class="devsite-landing-row-item-description-content"> Learn how to analyze your bundled JavaScript code and to spot common issues that can easily bloat up your application size. </div> </div> </div> </div> <div class="devsite-landing-row-item" description-position="bottom" > <div class="devsite-landing-row-item-media "> <figure class="devsite-landing-row-item-image"> <a href="https://web.dev/shows/web-dev-live-day-1/YGcA-h4YM6w"> <picture> <img alt="" src="https://web.dev/static/image/youtube/YGcA-h4YM6w.jpg" srcset="https://web.dev/static/image/youtube/YGcA-h4YM6w_36.jpg 36w,https://web.dev/static/image/youtube/YGcA-h4YM6w_48.jpg 48w,https://web.dev/static/image/youtube/YGcA-h4YM6w_72.jpg 72w,https://web.dev/static/image/youtube/YGcA-h4YM6w_96.jpg 96w,https://web.dev/static/image/youtube/YGcA-h4YM6w_480.jpg 480w,https://web.dev/static/image/youtube/YGcA-h4YM6w_720.jpg 720w,https://web.dev/static/image/youtube/YGcA-h4YM6w_856.jpg 856w,https://web.dev/static/image/youtube/YGcA-h4YM6w_960.jpg 960w,https://web.dev/static/image/youtube/YGcA-h4YM6w_1440.jpg 1440w,https://web.dev/static/image/youtube/YGcA-h4YM6w_1920.jpg 1920w,https://web.dev/static/image/youtube/YGcA-h4YM6w_2880.jpg 2880w" sizes="(max-width: 840px) 50vw, 464px" loading="lazy" > </picture> </a> </figure> </div> <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <h3 id="mastering-the-chrome-ux-report-on-bigquery" data-text="Mastering the Chrome UX Report on BigQuery" class="hide-from-toc no-link" tabindex="0"> <a href="https://web.dev/shows/web-dev-live-day-1/YGcA-h4YM6w"> Mastering the Chrome UX Report on BigQuery </a> </h3> <div class="devsite-landing-row-item-description-content"> There is so much information in the Chrome UX Report dataset on BigQuery, it can feel overwhelming at first. We've been hard at work maki... </div> </div> </div> </div> <div class="devsite-landing-row-item" description-position="bottom" > <div class="devsite-landing-row-item-media "> <figure class="devsite-landing-row-item-image"> <a href="https://web.dev/shows/web-dev-live-day-1/AQqFZ5t8uNc"> <picture> <img alt="" src="https://web.dev/static/image/youtube/AQqFZ5t8uNc.jpg" srcset="https://web.dev/static/image/youtube/AQqFZ5t8uNc_36.jpg 36w,https://web.dev/static/image/youtube/AQqFZ5t8uNc_48.jpg 48w,https://web.dev/static/image/youtube/AQqFZ5t8uNc_72.jpg 72w,https://web.dev/static/image/youtube/AQqFZ5t8uNc_96.jpg 96w,https://web.dev/static/image/youtube/AQqFZ5t8uNc_480.jpg 480w,https://web.dev/static/image/youtube/AQqFZ5t8uNc_720.jpg 720w,https://web.dev/static/image/youtube/AQqFZ5t8uNc_856.jpg 856w,https://web.dev/static/image/youtube/AQqFZ5t8uNc_960.jpg 960w,https://web.dev/static/image/youtube/AQqFZ5t8uNc_1440.jpg 1440w,https://web.dev/static/image/youtube/AQqFZ5t8uNc_1920.jpg 1920w,https://web.dev/static/image/youtube/AQqFZ5t8uNc_2880.jpg 2880w" sizes="(max-width: 840px) 50vw, 464px" loading="lazy" > </picture> </a> </figure> </div> <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <h3 id="optimize-for-core-web-vitals" data-text="Optimize for Core Web Vitals" class="hide-from-toc no-link" tabindex="0"> <a href="https://web.dev/shows/web-dev-live-day-1/AQqFZ5t8uNc"> Optimize for Core Web Vitals </a> </h3> <div class="devsite-landing-row-item-description-content"> In this hands-on talk, we cover tips & tricks for optimizing your user-experience to meet the Core Web Vitals. We use tools like Lighthou... </div> </div> </div> </div> <div class="devsite-landing-row-item" description-position="bottom" > <div class="devsite-landing-row-item-media "> <figure class="devsite-landing-row-item-image"> <a href="https://web.dev/shows/web-dev-live-day-1/yDHfrhCGFQw"> <picture> <img alt="" src="https://web.dev/static/image/youtube/yDHfrhCGFQw.jpg" srcset="https://web.dev/static/image/youtube/yDHfrhCGFQw_36.jpg 36w,https://web.dev/static/image/youtube/yDHfrhCGFQw_48.jpg 48w,https://web.dev/static/image/youtube/yDHfrhCGFQw_72.jpg 72w,https://web.dev/static/image/youtube/yDHfrhCGFQw_96.jpg 96w,https://web.dev/static/image/youtube/yDHfrhCGFQw_480.jpg 480w,https://web.dev/static/image/youtube/yDHfrhCGFQw_720.jpg 720w,https://web.dev/static/image/youtube/yDHfrhCGFQw_856.jpg 856w,https://web.dev/static/image/youtube/yDHfrhCGFQw_960.jpg 960w,https://web.dev/static/image/youtube/yDHfrhCGFQw_1440.jpg 1440w,https://web.dev/static/image/youtube/yDHfrhCGFQw_1920.jpg 1920w,https://web.dev/static/image/youtube/yDHfrhCGFQw_2880.jpg 2880w" sizes="(max-width: 840px) 50vw, 464px" loading="lazy" > </picture> </a> </figure> </div> <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <h3 id="whats-new-in-speed-tooling" data-text="What’s new in speed tooling" class="hide-from-toc no-link" tabindex="0"> <a href="https://web.dev/shows/web-dev-live-day-1/yDHfrhCGFQw"> What’s new in speed tooling </a> </h3> <div class="devsite-landing-row-item-description-content"> Our understanding of how to effectively measure and optimize a user's experience is continually evolving, and we keep our metrics and too... </div> </div> </div> </div> <div class="devsite-landing-row-item" description-position="bottom" > <div class="devsite-landing-row-item-media "> <figure class="devsite-landing-row-item-image"> <a href="https://web.dev/shows/web-dev-live-day-1/Wy1bTEFQyCc"> <picture> <img alt="" src="https://web.dev/static/image/youtube/Wy1bTEFQyCc.jpg" srcset="https://web.dev/static/image/youtube/Wy1bTEFQyCc_36.jpg 36w,https://web.dev/static/image/youtube/Wy1bTEFQyCc_48.jpg 48w,https://web.dev/static/image/youtube/Wy1bTEFQyCc_72.jpg 72w,https://web.dev/static/image/youtube/Wy1bTEFQyCc_96.jpg 96w,https://web.dev/static/image/youtube/Wy1bTEFQyCc_480.jpg 480w,https://web.dev/static/image/youtube/Wy1bTEFQyCc_720.jpg 720w,https://web.dev/static/image/youtube/Wy1bTEFQyCc_856.jpg 856w,https://web.dev/static/image/youtube/Wy1bTEFQyCc_960.jpg 960w,https://web.dev/static/image/youtube/Wy1bTEFQyCc_1440.jpg 1440w,https://web.dev/static/image/youtube/Wy1bTEFQyCc_1920.jpg 1920w,https://web.dev/static/image/youtube/Wy1bTEFQyCc_2880.jpg 2880w" sizes="(max-width: 840px) 50vw, 464px" loading="lazy" > </picture> </a> </figure> </div> <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <h3 id="welcome-to-day-one" data-text="Welcome to Day One" class="hide-from-toc no-link" tabindex="0"> <a href="https://web.dev/shows/web-dev-live-day-1/Wy1bTEFQyCc"> Welcome to Day One </a> </h3> <div class="devsite-landing-row-item-description-content"> On day 1, we kick things off by sharing why we are coming together as a community, including a guest speaker from CA.gov. We cover some o... </div> </div> </div> </div> </div> </div> </section> </div> <div class="devsite-floating-action-buttons"> </div> </article> <devsite-notification > </devsite-notification> <div class="devsite-content-data"> <template class="devsite-content-data-template"> [[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],[],[],[]] </template> </div> </devsite-content> </main> <devsite-footer-promos class="devsite-footer"> </devsite-footer-promos> <devsite-footer-linkboxes class="devsite-footer"> <nav class="devsite-footer-linkboxes nocontent" aria-label="Footer links"> <ul class="devsite-footer-linkboxes-list"> <li class="devsite-footer-linkbox wd-footer-promo"> <h3 class="devsite-footer-linkbox-heading no-link">web.dev</h3> <ul class="devsite-footer-linkbox-list"> <li class="devsite-footer-linkbox-item"> <h3 class="devsite-footer-linkbox-heading no-link"> web.dev </h3> <div class="devsite-footer-linkbox-description">We want to help you build beautiful, accessible, fast, and secure websites that work cross-browser, and for all of your users. This site is our home for content to help you on that journey, written by members of the Chrome team, and external experts.</div> </li> </ul> </li> <li class="devsite-footer-linkbox "> <h3 class="devsite-footer-linkbox-heading no-link">Contribute</h3> <ul class="devsite-footer-linkbox-list"> <li class="devsite-footer-linkbox-item"> <a href="https://issuetracker.google.com/issues/new?component=1400680&template=1857359" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 1)" > File a bug </a> </li> <li class="devsite-footer-linkbox-item"> <a href="https://issuetracker.google.com/issues?q=status:open%20componentid:1400680&s=created_time:desc" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 2)" > See open issues </a> </li> </ul> </li> <li class="devsite-footer-linkbox "> <h3 class="devsite-footer-linkbox-heading no-link">Related Content</h3> <ul class="devsite-footer-linkbox-list"> <li class="devsite-footer-linkbox-item"> <a href="https://developer.chrome.com/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 1)" > Chrome for Developers </a> </li> <li class="devsite-footer-linkbox-item"> <a href="https://blog.chromium.org/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 2)" > Chromium updates </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/case-studies" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 3)" > Case studies </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/shows" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 4)" > Podcasts & shows </a> </li> </ul> </li> <li class="devsite-footer-linkbox "> <h3 class="devsite-footer-linkbox-heading no-link">Follow</h3> <ul class="devsite-footer-linkbox-list"> <li class="devsite-footer-linkbox-item"> <a href="https://twitter.com/ChromiumDev" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 1)" > @ChromiumDev on X </a> </li> <li class="devsite-footer-linkbox-item"> <a href="https://www.youtube.com/user/ChromeDevelopers" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 2)" > YouTube </a> </li> <li class="devsite-footer-linkbox-item"> <a href="https://www.linkedin.com/showcase/chrome-for-developers" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 3)" > Chrome for Developers on LinkedIn </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/static/blog/feed.xml" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 4)" > RSS </a> </li> </ul> </li> </ul> </nav> </devsite-footer-linkboxes> <devsite-footer-utility class="devsite-footer"> <div class="devsite-footer-utility nocontent"> <nav class="devsite-footer-utility-links" aria-label="Utility links"> <ul class="devsite-footer-utility-list"> <li class="devsite-footer-utility-item "> <a class="devsite-footer-utility-link gc-analytics-event" href="//policies.google.com/terms" data-category="Site-Wide Custom Events" data-label="Footer Terms link" > Terms </a> </li> <li class="devsite-footer-utility-item "> <a class="devsite-footer-utility-link gc-analytics-event" href="//policies.google.com/privacy" data-category="Site-Wide Custom Events" data-label="Footer Privacy link" > Privacy </a> </li> <li class="devsite-footer-utility-item glue-cookie-notification-bar-control"> <a class="devsite-footer-utility-link gc-analytics-event" href="#" data-category="Site-Wide Custom Events" data-label="Footer Manage cookies link" aria-hidden="true" > Manage cookies </a> </li> </ul> <devsite-language-selector> <ul role="presentation"> <li role="presentation"> <a role="menuitem" lang="en" >English</a> </li> <li role="presentation"> <a role="menuitem" lang="de" >Deutsch</a> </li> <li role="presentation"> <a role="menuitem" lang="es_419" >Español – América Latina</a> </li> <li role="presentation"> <a role="menuitem" lang="fr" >Français</a> </li> <li role="presentation"> <a role="menuitem" lang="id" >Indonesia</a> </li> <li role="presentation"> <a role="menuitem" lang="it" >Italiano</a> </li> <li role="presentation"> <a role="menuitem" lang="pl" >Polski</a> </li> <li role="presentation"> <a role="menuitem" lang="pt_br" >Português – Brasil</a> </li> <li role="presentation"> <a role="menuitem" lang="vi" >Tiếng Việt</a> </li> <li role="presentation"> <a role="menuitem" lang="tr" >Türkçe</a> </li> <li role="presentation"> <a role="menuitem" lang="ru" >Русский</a> </li> <li role="presentation"> <a role="menuitem" lang="he" >עברית</a> </li> <li role="presentation"> <a role="menuitem" lang="ar" >العربيّة</a> </li> <li role="presentation"> <a role="menuitem" lang="fa" >فارسی</a> </li> <li role="presentation"> <a role="menuitem" lang="hi" >हिंदी</a> </li> <li role="presentation"> <a role="menuitem" lang="bn" >বাংলা</a> </li> <li role="presentation"> <a role="menuitem" lang="th" >ภาษาไทย</a> </li> <li role="presentation"> <a role="menuitem" lang="zh_cn" >中文 – 简体</a> </li> <li role="presentation"> <a role="menuitem" lang="zh_tw" >中文 – 繁體</a> </li> <li role="presentation"> <a role="menuitem" lang="ja" >日本語</a> </li> <li role="presentation"> <a role="menuitem" lang="ko" >한국어</a> </li> </ul> </devsite-language-selector> </nav> </div> </devsite-footer-utility> <devsite-panel></devsite-panel> </section></section> <devsite-sitemask></devsite-sitemask> <devsite-snackbar></devsite-snackbar> <devsite-tooltip ></devsite-tooltip> <devsite-heading-link></devsite-heading-link> <devsite-analytics> <script type="application/json" analytics>[]</script> <script type="application/json" tag-management>{"at": "True", "ga4": [], "ga4p": [], "gtm": [{"id": "GTM-MZWCJPP", "purpose": 0}], "parameters": {"internalUser": "False", "language": {"machineTranslated": "False", "requested": "en", "served": "en"}, "pageType": "article", "projectName": "web.dev LIVE Day 1", "signedIn": "False", "tenant": "web", "recommendations": {"sourcePage": "", "sourceType": 0, "sourceRank": 0, "sourceIdenticalDescriptions": 0, "sourceTitleWords": 0, "sourceDescriptionWords": 0, "experiment": ""}, "experiment": {"ids": ""}}}</script> </devsite-analytics> <devsite-badger></devsite-badger> <script nonce="g4bxH7LegxvzUkYkyn/g8M9ZMkDt+t"> (function(d,e,v,s,i,t,E){d['GoogleDevelopersObject']=i; t=e.createElement(v);t.async=1;t.src=s;E=e.getElementsByTagName(v)[0]; E.parentNode.insertBefore(t,E);})(window, document, 'script', 'https://www.gstatic.com/devrel-devsite/prod/v870e399c64f7c43c99a3043db4b3a74327bb93d0914e84a0c3dba90bbfd67625/web/js/app_loader.js', '[27,"en",null,"/js/devsite_app_module.js","https://www.gstatic.com/devrel-devsite/prod/v870e399c64f7c43c99a3043db4b3a74327bb93d0914e84a0c3dba90bbfd67625","https://www.gstatic.com/devrel-devsite/prod/v870e399c64f7c43c99a3043db4b3a74327bb93d0914e84a0c3dba90bbfd67625/web","https://web-dot-devsite-v2-prod-3p.appspot.com",1,null,["/_pwa/web/manifest.json","https://www.gstatic.com/devrel-devsite/prod/v870e399c64f7c43c99a3043db4b3a74327bb93d0914e84a0c3dba90bbfd67625/images/video-placeholder.svg","https://www.gstatic.com/devrel-devsite/prod/v870e399c64f7c43c99a3043db4b3a74327bb93d0914e84a0c3dba90bbfd67625/web/images/favicon.png","https://www.gstatic.com/devrel-devsite/prod/v870e399c64f7c43c99a3043db4b3a74327bb93d0914e84a0c3dba90bbfd67625/web/images/lockup.svg","https://fonts.googleapis.com/css?family=Google+Sans:400,500|Roboto:400,400italic,500,500italic,700,700italic|Roboto+Mono:400,500,700&display=swap"],1,null,[1,6,8,12,14,17,21,25,50,52,63,70,75,76,80,87,91,92,93,97,98,100,101,102,103,104,105,107,108,109,110,112,113,117,118,120,122,124,125,126,127,129,130,131,132,133,134,135,136,138,140,141,147,148,149,151,152,156,157,158,159,161,163,164,168,169,170,179,180,182,183,186,191,193,196],"AIzaSyCNm9YxQumEXwGJgTDjxoxXK6m1F-9720Q","AIzaSyCc76DZePGtoyUjqKrLdsMGk_ry7sljLbY","web.dev","AIzaSyB9bqgQ2t11WJsOX8qNsCQ6U-w91mmqF-I","AIzaSyAdYnStPdzjcJJtQ0mvIaeaMKj7_t6J_Fg",null,null,null,["EngEduTelemetry__enable_engedu_telemetry","Cloud__enable_cloud_facet_chat","Cloud__enable_cloudx_experiment_ids","MiscFeatureFlags__developers_footer_dark_image","CloudShell__cloud_shell_button","MiscFeatureFlags__enable_project_variables","Profiles__enable_recognition_badges","Cloud__enable_cloud_shell","Profiles__enable_dashboard_curated_recommendations","BookNav__enable_tenant_cache_key","Cloud__enable_llm_concierge_chat","Cloud__enable_cloud_dlp_service","MiscFeatureFlags__enable_explain_this_code","Search__enable_ai_eligibility_checks","Cloud__enable_cloud_shell_fte_user_flow","TpcFeatures__enable_mirror_tenant_redirects","Profiles__enable_public_developer_profiles","MiscFeatureFlags__enable_variable_operator","Profiles__enable_developer_profiles_callout","MiscFeatureFlags__developers_footer_image","DevPro__enable_developer_subscriptions","Analytics__enable_clearcut_logging","CloudShell__cloud_code_overflow_menu","Profiles__enable_page_saving","Experiments__reqs_query_experiments","Profiles__require_profile_eligibility_for_signin","Profiles__enable_release_notes_notifications","Profiles__enable_awarding_url","Profiles__enable_completecodelab_endpoint","Cloud__enable_legacy_calculator_redirect","DevPro__enable_cloud_innovators_plus","Cloud__enable_cloudx_ping","Search__enable_suggestions_from_borg","Cloud__enable_free_trial_server_call","Search__enable_page_map","MiscFeatureFlags__enable_firebase_utm","Profiles__enable_complete_playlist_endpoint","Search__enable_dynamic_content_confidential_banner","MiscFeatureFlags__emergency_css","OnSwitch__enable","TpcFeatures__enable_required_headers","Profiles__enable_profile_collections","Concierge__enable_pushui","MiscFeatureFlags__enable_view_transitions"],null,null,"AIzaSyA58TaKli1DculwmAmbpzLVGuWc8eCQgQc","https://developerscontentserving-pa.googleapis.com","AIzaSyDWBU60w0P9hEkr29kkksYs8Z7gvZ8u_wc","https://developerscontentsearch-pa.googleapis.com",2,4,null,"https://developerprofiles-pa.googleapis.com",[27,"web","web.dev","web.dev",null,"web-dot-devsite-v2-prod-3p.appspot.com",null,null,[null,null,null,null,null,null,null,null,null,null,null,[1],null,null,null,null,null,null,[1],null,null,null,null,[1,null,1],[1,1,null,1,1]],null,[38,null,null,null,null,null,"/images/lockup.svg","/images/touchicon-180.png",null,null,null,1,1,null,null,null,null,null,null,null,null,2,null,null,null,"/images/lockup-dark-theme.svg",[]],[],null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,[[],[1,1]],[[null,null,null,null,null,["GTM-MZWCJPP"],null,null,null,null,null,[["GTM-MZWCJPP",1]],1]],null,4]]') </script> <devsite-a11y-announce></devsite-a11y-announce> </body> </html>