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We keep a record of all visits and use this data to support as many users as possible. 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2.7-2.7-1.2-2.7-2.7-2.7z"></path> </svg> </a> </div> </div> </header> <div class="govuk-width-container"> <header class="header" aria-label="blog name"> <div class="govuk-grid-row"> <div class="govuk-grid-column-two-thirds"> <div class="blog-title govuk-heading-xl"> <span class="blog"><a href="https://www.blog.gov.uk/">Blog</a></span> <a href="https://technology.blog.gov.uk">Technology in government</a> </div> <div class="bottom blog-meta"> <dl> <dt>Organisations:</dt> <dd><a href="https://www.gov.uk/government/organisations/civil-service">Civil Service</a></dd> </dl> </div> </div> <div class="govuk-grid-column-one-third"> <div class="bottom search-container"> <form role="search" method="get" id="searchform" class="form-search" action="https://technology.blog.gov.uk/"> <label class="govuk-label govuk-label--m" for="s">Search blog</label> <div class="search-input-wrapper"> <input enterkeyhint="search" title="Search" type="search" value="" name="s" id="s" class="search-query"> <input type="submit" id="searchsubmit" value="Search" class="btn"> </div> </form> </div> </div> </div> </header> <main id="content" class="govuk-grid-row" role="main"> <div class="govuk-grid-column-two-thirds main-content"> <article class="govuk-clearfix post-1939 post type-post status-publish format-standard has-post-thumbnail hentry category-gov-uk tag-browsers tag-developer tag-frontend tag-testing"> <div class="visible-print"> <p>https://technology.blog.gov.uk/2016/10/21/gaining-understanding-of-the-browsers-people-use/</p> </div> <header> <h1 class="govuk-heading-xl">Gaining understanding of the browsers people use</h1> <div class="govuk-body-s"> <span class="govuk-visually-hidden">Posted by: </span> <a href="https://technology.blog.gov.uk/author/robinwhittleton/" title="Posts by Robin Whittleton" class="author url fn" rel="author">Robin Whittleton</a>, <span class="govuk-visually-hidden">Posted on: </span><time class="updated" datetime="2016-10-21T10:08:43+01:00">21 October 2016</time> - <span class="govuk-visually-hidden">Categories: </span> <a href="https://technology.blog.gov.uk/category/gov-uk/" rel="category tag">GOV.UK</a></div> </header> <div class="entry-content"> <p><a href="https://gdstechnology.blog.gov.uk/wp-content/uploads/sites/31/2016/10/Welcome-to-GOV.UK-pic.jpg"><img fetchpriority="high" decoding="async" class="alignnone size-full wp-image-1938" src="https://gdstechnology.blog.gov.uk/wp-content/uploads/sites/31/2016/10/Welcome-to-GOV.UK-pic.jpg" alt="Screen showing GOV.UK homepage" width="800" height="600" srcset="https://technology.blog.gov.uk/wp-content/uploads/sites/31/2016/10/Welcome-to-GOV.UK-pic.jpg 800w, https://technology.blog.gov.uk/wp-content/uploads/sites/31/2016/10/Welcome-to-GOV.UK-pic-300x225.jpg 300w, https://technology.blog.gov.uk/wp-content/uploads/sites/31/2016/10/Welcome-to-GOV.UK-pic-768x576.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></a></p> <p>GOV.UK gets a lot of visits from people in the UK and further afield. We keep a record of all visits and use this data to support as many users as possible.</p> <h2>Deciding which browsers to test</h2> <p>We’ll try to support any user who comes to GOV.UK. We want people to be able to use whatever browser or device they have to access the service or content they need.</p> <p>We recommend government developers test their services on the top 95% of browsers employed by our users. The list of these browsers is on the Service Manual’s <a href="https://www.gov.uk/service-manual/user-centred-design/browsers-and-devices.html">browser and device page</a>, which is updated a few times every year.</p> <p>For example, our most used browser currently is Safari on iOS. We take the percentage of users who access GOV.UK with that, then add on the percentage of people using the second most used browser: Chrome on Windows. We continue until we’ve got to 95% of our users.</p> <p>This figure isn’t a rigid cut-off point. We recommend that developers look at their own service’s analytics and user research to better understand if their specific users use different technologies to the overall GOV.UK statistics. This will give them a better chance of meeting their users’ needs. At GDS, our service teams always consider the particular needs of small groups of browser users. For example, sometimes we realise that it's hard or impossible for users to upgrade their browser and we’ll carry on testing browsers for them even if they don’t fit into the top 95%.</p> <p>Once we know which browsers we’re going to test, we place them into one of two groups. ‘Compliant’ browsers should meet users’ expectations. While one compliant browser doesn’t have to exactly match the specifications of other compliant browsers (for example the font rendering may be slightly different), users should never feel like anything is wrong with the site.</p> <p>Browsers we call ‘functional’ may not render content perfectly, and may miss out on some of the extra functionality that can be added with JavaScript. The user should still be able to access information or services with a reasonable level of confidence. When evaluating browsers during development, a developer needs to consider how much confidence users need to have in the end product or service: a user trying to <a href="https://www.gov.uk/government/publications/introducing-govuk-verify/introducing-govuk-verify">verify their identity</a> might need to have more trust in a service interface than one looking up <a href="https://www.gov.uk/fishing-licences">how to apply for a fishing licence</a>.</p> <p>If a user’s browser or device is too old to work properly with GOV.UK then our support may help them upgrade their software or provide alternative ways to access their needed content or services. Users with old browsers on GOV.UK see a banner with a link to <a href="https://www.gov.uk/help/browsers">a page to help them upgrade</a>.</p> <p><a href="https://gdstechnology.blog.gov.uk/wp-content/uploads/sites/31/2016/10/webbrowser.png"><img decoding="async" class="alignnone size-full wp-image-1943" src="https://gdstechnology.blog.gov.uk/wp-content/uploads/sites/31/2016/10/webbrowser.png" alt="webbrowser" width="865" height="284" srcset="https://technology.blog.gov.uk/wp-content/uploads/sites/31/2016/10/webbrowser.png 865w, https://technology.blog.gov.uk/wp-content/uploads/sites/31/2016/10/webbrowser-300x98.png 300w, https://technology.blog.gov.uk/wp-content/uploads/sites/31/2016/10/webbrowser-768x252.png 768w" sizes="(max-width: 865px) 100vw, 865px" /></a></p> <h2>GOV.UK browser statistics</h2> <p>Here’s a table of the most common browsers people used to visit GOV.UK during September 2016.</p> <table> <thead> <tr> <th>Browser</th> <th>Number of visitors</th> <th>Percentage</th> </tr> </thead> <tbody> <tr> <td>Safari on iOS</td> <td>22,575,217</td> <td>24.73%</td> </tr> <tr> <td>Chrome on Windows</td> <td>20,411,444</td> <td>22.36%</td> </tr> <tr> <td>Internet Explorer 11</td> <td>13,769,015</td> <td>15.08%</td> </tr> <tr> <td>Chrome on Android</td> <td>13,555,862</td> <td>14.85%</td> </tr> <tr> <td>Firefox on Windows</td> <td>3,973,448</td> <td>4.35%</td> </tr> <tr> <td>Edge on Windows</td> <td>3,772,275</td> <td>4.13%</td> </tr> <tr> <td>Safari on macOS</td> <td>3,690,759</td> <td>4.04%</td> </tr> <tr> <td>Chrome on macOS</td> <td>2,062,667</td> <td>2.26%</td> </tr> <tr> <td>Chrome on iOS</td> <td>973,166</td> <td>1.07%</td> </tr> <tr> <td>Internet Explorer 9</td> <td>931,711</td> <td>1.02%</td> </tr> <tr> <td>Internet Explorer 10</td> <td>702,852</td> <td>0.77%</td> </tr> <tr> <td>Android Browser</td> <td>701,198</td> <td>0.77%</td> </tr> <tr> <td>Internet Explorer 8</td> <td>684,908</td> <td>0.75%</td> </tr> <tr> <td>Safari (in-app)</td> <td>505,950</td> <td>0.55%</td> </tr> <tr> <td>Amazon Silk</td> <td>438,687</td> <td>0.48%</td> </tr> <tr> <td>Opera</td> <td>210,051</td> <td>0.23%</td> </tr> <tr> <td>Internet Explorer 7</td> <td>199,934</td> <td>0.22%</td> </tr> <tr> <td>Other</td> <td>2,134,269</td> <td>2.34%</td> </tr> </tbody> <tfoot> <tr> <td>Total sessions</td> <td>91,293,413</td> <td></td> </tr> </tfoot> </table> <p>Currently Internet Explorer 8, 9 and 10 are pretty low down in the list, and getting services working well in them consumes a fair amount of development time. We’ll probably move these browsers to functional in the next few months depending on how quickly people stop using them. At the same time we’ll also probably stop testing old versions of Safari on iOS. Older versions of Safari (and other modern browsers) usually display GOV.UK pages fine, but the effort to test in them for every service means that it’s not worth it given the number of people using them.</p> <p>Looking deeper into the statistics we also see some people using older and less common browsers. In September we still had 3,651 people using Internet Explorer 6 to access GOV.UK. We also see a few people using browsers that come with games consoles. We had 2,842 users visit with the Playstation 3 browser and 596 with their Playstation Vita. We had 933 visit on their Nintendo Wii / Wii U and 176 on their Nintendo 3DS. I’d also like to congratulate the 5 people still able to make use of Firefox on IBM OS/2 in September 2016.</p> <h2>Finding out more</h2> <p>We’d really like to know if this detail is useful to anyone, as we’re considering publishing browser trend reports on a monthly basis. Leave us a comment or get in touch directly and let us know how these reports can help you.</p> <blockquote class="noquotes"><p>You can <a href="https://twitter.com/robinwhittleton">follow Robin on Twitter</a>, <a href="/subscribe/">sign up now for email updates from this blog</a> or <a href="https://gdstechnology.blog.gov.uk/feed/atom/">subscribe to the feed</a>.</p></blockquote> <blockquote class="noquotes"><p>If this sounds like a good place to work, take a look at <a href="https://gds.blog.gov.uk/working-for-gds/">Working for GDS</a> - we're usually in search of talented people to come and join the team.</p></blockquote> </div> <div class="footer single"> <p class="govuk-body-s tags"><strong>Tags:</strong> <a href="https://technology.blog.gov.uk/tag/browsers/" rel="tag">browsers</a>, <a href="https://technology.blog.gov.uk/tag/developer/" rel="tag">developer</a>, <a href="https://technology.blog.gov.uk/tag/frontend/" rel="tag">frontend</a>, <a href="https://technology.blog.gov.uk/tag/testing/" rel="tag">testing</a></p> </div> </article> <nav class="page-numbers-container page-navigation" aria-label="Pagination"> <div class="previous"> <a href="https://technology.blog.gov.uk/2016/10/10/using-containers-to-help-develop-gov-uk-pay/" rel="prev">Using containers to help develop GOV.UK Pay</a> </div> <div class="next"> <a href="https://technology.blog.gov.uk/2016/10/28/writing-documentation-for-developers/" rel="next">Writing documentation for developers</a> </div> </nav> <h2 class="govuk-visually-hidden">Sharing and comments</h2> <div class="icons-buttons"> <h3>Share this page</h3> <ul> <li> <a target="_blank" href="https://twitter.com/intent/tweet?original_referer&url=https%3A%2F%2Ftechnology.blog.gov.uk%2F2016%2F10%2F21%2Fgaining-understanding-of-the-browsers-people-use%2F&text=Gaining+understanding+of+the+browsers+people+use" class="twitter">Twitter</a> </li> <li> <a target="_blank" 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class="govuk-visually-hidden">Comment by</span> <span class="author">Bob Lake</span> <span class="govuk-visually-hidden">posted on </span> <time datetime="2016-10-21T12:10:41+01:00">21 October 2016</time> </p> <div class="comment-body"> <p>Why don't you just create a dashboard with this info and stop rewriting this same blog post every 6 months?</p> <div class="comment-links"> <a href="https://technology.blog.gov.uk/2016/10/21/gaining-understanding-of-the-browsers-people-use/#comment-54723" rel="external nofollow">Link to this comment</a> </div> </div> <ul class="comment odd alt thread-odd thread-alt depth-1 media unstyled comment-54723"> <li id="comment-54731" class="comment even depth-2 media comment-54731"> <span class="govuk-visually-hidden">Replies to Bob Lake></span> <div class="media-body"> <p class="govuk-body media-heading"> <span class="govuk-visually-hidden">Comment by</span> <span class="author">David Read</span> <span class="govuk-visually-hidden">posted on </span> <time datetime="2016-11-01T11:19:44+00:00">01 November 2016</time> </p> <div class="comment-body"> <p>I guess the point is this is a regular topic on the GDS blog:</p> <p><a href="https://gds.blog.gov.uk/2012/12/12/browser-usage-on-gov-uk/" rel="nofollow ugc">https://gds.blog.gov.uk/2012/12/12/browser-usage-on-gov-uk/</a><br /> <a href="https://gds.blog.gov.uk/2013/03/11/interesting-browser-stats/" rel="nofollow ugc">https://gds.blog.gov.uk/2013/03/11/interesting-browser-stats/</a><br /> <a href="https://gds.blog.gov.uk/2014/01/28/browser-operating-system-and-screen-resolution-data-for-gov-uk/" rel="nofollow ugc">https://gds.blog.gov.uk/2014/01/28/browser-operating-system-and-screen-resolution-data-for-gov-uk/</a></p> <p>Indeed a dashboard for this makes a lot of sense.</p> <div class="comment-links"> <a href="https://technology.blog.gov.uk/2016/10/21/gaining-understanding-of-the-browsers-people-use/#comment-54731" rel="external nofollow">Link to this comment</a> </div> </div> </div></li> </ul></div></li> <li id="comment-54724" class="comment odd alt thread-even depth-1 media comment-54724"> <div class="media-body"> <p class="govuk-body media-heading"> <span class="govuk-visually-hidden">Comment by</span> <span class="author">Jonathan Conway</span> <span class="govuk-visually-hidden">posted on </span> <time datetime="2016-10-22T13:20:45+01:00">22 October 2016</time> </p> <div class="comment-body"> <p>Thanks for making public all your hard work in this space! ?</p> <p>One thing I'm curious about: early on in the piece, before you had any/many people using your systems, what was your decision making around browser support?</p> <p>Did you start off just supporting a common, easy-to-develop-with browser, like say Chrome, before gradually ramping up support for other browsers?</p> <p>Or did you make an up-front decision about which browsers you'd support? And if so, what kind of data or other reasoning was that based off?</p> <p>From how you explained it in this post, you seem to be dynamic/evolving with browser support rather than static/up-front, which I absolutely applaud and hope to also do where I work. ??</p> <div class="comment-links"> <a href="https://technology.blog.gov.uk/2016/10/21/gaining-understanding-of-the-browsers-people-use/#comment-54724" rel="external nofollow">Link to this comment</a> </div> </div> <ul class="comment even thread-odd thread-alt depth-1 media unstyled comment-54724"> <li id="comment-54727" class="comment odd alt depth-2 media comment-54727"> <span class="govuk-visually-hidden">Replies to Jonathan Conway></span> <div class="media-body"> <p class="govuk-body media-heading"> <span class="govuk-visually-hidden">Comment by</span> <span class="author">Tom Byers</span> <span class="govuk-visually-hidden">posted on </span> <time datetime="2016-10-24T10:28:49+01:00">24 October 2016</time> </p> <div class="comment-body"> <p>Hi Jonathan,</p> <p>We were lucky enough to have access to the analytics data from Directgov and Business Link when we started work on <a href="http://www.gov.uk" rel="nofollow ugc">http://www.gov.uk</a>. This allow us to create an initial matrix of the browsers and devices people would be using to access most of the information on the new site. Any new information or services we introduced had this matrix to start with the team adapting it as the product was iterated.</p> <div class="comment-links"> <a href="https://technology.blog.gov.uk/2016/10/21/gaining-understanding-of-the-browsers-people-use/#comment-54727" rel="external nofollow">Link to this comment</a> </div> </div> </div></li> </ul></div></li> <li id="comment-54725" class="comment even thread-even depth-1 media comment-54725"> <div class="media-body"> <p class="govuk-body media-heading"> <span class="govuk-visually-hidden">Comment by</span> <span class="author">Šime Vidas</span> <span class="govuk-visually-hidden">posted on </span> <time datetime="2016-10-23T22:11:00+01:00">23 October 2016</time> </p> <div class="comment-body"> <p>Do you show the “Upgrade browser” banner for ’functional’ browsers or only for even older browsers? Could you share the script for detecting when to show the banner?</p> <div class="comment-links"> <a href="https://technology.blog.gov.uk/2016/10/21/gaining-understanding-of-the-browsers-people-use/#comment-54725" rel="external nofollow">Link to this comment</a> </div> </div> <ul class="comment odd alt thread-odd thread-alt depth-1 media unstyled comment-54725"> <li id="comment-54726" class="comment byuser comment-author-robinwhittleton bypostauthor even depth-2 media comment-54726"> <span class="govuk-visually-hidden">Replies to Šime Vidas></span> <div class="media-body"> <p class="govuk-body media-heading"> <span class="govuk-visually-hidden">Comment by</span> <span class="author"><a href="https://technology.blog.gov.uk/author/robinwhittleton/">Robin Whittleton</a></span> <span class="govuk-visually-hidden">posted on </span> <time datetime="2016-10-24T09:28:39+01:00">24 October 2016</time> </p> <div class="comment-body"> <p>We show the banner for IE6-10, Firefox <17, Chrome <34, Safari on Windows and Safari <7 on iOS, and older versions of Android Browser. This probably needs an update. You’ll notice that there’s some ‘compliant’ browsers in that list: even if a browser still has enough users to require us to support it fully it doesn’t mean we shouldn’t warn those users that it’s old.</p> <div class="comment-links"> <a href="https://technology.blog.gov.uk/2016/10/21/gaining-understanding-of-the-browsers-people-use/#comment-54726" rel="external nofollow">Link to this comment</a> </div> </div> </div></li> </ul></div></li> <li id="comment-54735" class="comment odd alt thread-even depth-1 media comment-54735"> <div class="media-body"> <p class="govuk-body media-heading"> <span class="govuk-visually-hidden">Comment by</span> <span class="author">Giacomo</span> <span class="govuk-visually-hidden">posted on </span> <time datetime="2016-11-09T23:07:37+00:00">09 November 2016</time> </p> <div class="comment-body"> <p>I find this data extremely useful, since the website is not tied to a particular category of users.<br /> This make the statistics really precious, because they are a real an indication of the actual browser panorama</p> <div class="comment-links"> <a href="https://technology.blog.gov.uk/2016/10/21/gaining-understanding-of-the-browsers-people-use/#comment-54735" rel="external nofollow">Link to this comment</a> </div> </div> </div></li> <li id="comment-55589" class="comment even thread-odd thread-alt depth-1 media comment-55589"> <div class="media-body"> <p class="govuk-body media-heading"> <span class="govuk-visually-hidden">Comment by</span> <span class="author">Esther</span> <span class="govuk-visually-hidden">posted on </span> <time datetime="2018-06-20T10:38:34+01:00">20 June 2018</time> </p> <div class="comment-body"> <p>Great post and really useful information. Indeed a dashboard or trend board would be valuable. Would love to understand how you tracking the number of visitors on each of the platforms. Is this data collected client side or server (i.e. user-agent or GA events for example).</p> <div class="comment-links"> <a href="https://technology.blog.gov.uk/2016/10/21/gaining-understanding-of-the-browsers-people-use/#comment-55589" rel="external nofollow">Link to this comment</a> </div> </div> </div></li> </ol> </section> </div> <div class="govuk-grid-column-one-third sidebar-contain"> <div class="sidebar"> <h2 class="govuk-heading-m govuk-visually-hidden">Related content and links</h2> <section class="widget about_widget"><h3>Technology in government</h3><p>This is for everyone: documenting how we're building, assembling and running digital and technology projects across the UK government. <a href="https://technology.blog.gov.uk/2013/11/29/welcome-to-gds-technology/">Find out more</a>. </p> </section><section class="widget categories-2 widget_categories"><div class="widget-inner"><h3>Categories</h3><form action="https://technology.blog.gov.uk" method="get"><label 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