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View source for Web Content Accessibility Guidelines - Wikipedia

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[o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Log in</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Pages for logged out editors <a href="/wiki/Help:Introduction" aria-label="Learn more about editing"><span>learn more</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Special:MyContributions" title="A list of edits made from this IP address [y]" accesskey="y"><span>Contributions</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Special:MyTalk" title="Discussion about edits from this IP address [n]" accesskey="n"><span>Talk</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"><!-- CentralNotice --></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <h1 id="firstHeading" class="firstHeading mw-first-heading">View source for Web Content Accessibility Guidelines</h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="This article exist only in this language. 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class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Web_Content_Accessibility_Guidelines" title="View the content page [c]" accesskey="c"><span>Article</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Talk:Web_Content_Accessibility_Guidelines" rel="discussion" title="Discuss improvements to the content page [t]" accesskey="t"><span>Talk</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Change language variant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">English</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Views"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="vector-tab-noicon mw-list-item"><a href="/wiki/Web_Content_Accessibility_Guidelines"><span>Read</span></a></li><li id="ca-edit" class="selected vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Web_Content_Accessibility_Guidelines&amp;action=edit" title="Edit this page"><span>Edit</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a 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this page [j]" accesskey="j"><span>What links here</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Special:RecentChangesLinked/Web_Content_Accessibility_Guidelines" rel="nofollow" title="Recent changes in pages linked from this page [k]" accesskey="k"><span>Related changes</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Wikipedia:File_Upload_Wizard" title="Upload files [u]" accesskey="u"><span>Upload file</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Special:SpecialPages" title="A list of all special pages [q]" accesskey="q"><span>Special pages</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Web_Content_Accessibility_Guidelines&amp;action=info" title="More information about this page"><span>Page information</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Special:UrlShortener&amp;url=https%3A%2F%2Fen.wikipedia.org%2Fw%2Findex.php%3Ftitle%3DWeb_Content_Accessibility_Guidelines%26action%3Dedit%26section%3D1"><span>Get shortened URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&amp;url=https%3A%2F%2Fen.wikipedia.org%2Fw%2Findex.php%3Ftitle%3DWeb_Content_Accessibility_Guidelines%26action%3Dedit%26section%3D1"><span>Download QR code</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> In other projects </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q5364439" title="Structured data on this page hosted by Wikidata [g]" accesskey="g"><span>Wikidata 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var(--background-color-warning-subtle, ivory); color: inherit; padding: 1.5em; width: 100%; box-sizing: border-box;"> <div style="text-align: center;"><span style="font-size: 26px;"><span typeof="mw:File"><a href="/wiki/File:Stop_hand_nuvola.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/en/thumb/f/f1/Stop_hand_nuvola.svg/50px-Stop_hand_nuvola.svg.png" decoding="async" width="50" height="50" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/f/f1/Stop_hand_nuvola.svg/75px-Stop_hand_nuvola.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/f/f1/Stop_hand_nuvola.svg/100px-Stop_hand_nuvola.svg.png 2x" data-file-width="240" data-file-height="240" /></a></span><b> This IP address has been <a href="/wiki/Wikipedia:Blocking_policy" title="Wikipedia:Blocking policy">blocked</a> from <i>editing</i> Wikipedia.</b></span><br /><span style="font-size: 18px;">This does not affect your ability to <i>read</i> Wikipedia pages.</span></div><div class="paragraphbreak" style="margin-top:0.5em"></div><b>Most people who see this message have done nothing wrong.</b> Some kinds of blocks restrict editing from specific service providers or telecom companies in response to recent abuse or vandalism, and can sometimes affect other users who are unrelated to that abuse. Review the information below for assistance if you do not believe that you have done anything wrong.<div class="paragraphbreak" style="margin-top:0.5em"></div> <p>The IP address or range 8.222.128.0/17 has been <a href="/wiki/Wikipedia:Blocking_policy" title="Wikipedia:Blocking policy">blocked</a> by <a href="/wiki/User:L235" title="User:L235">‪L235‬</a> for the following reason(s): </p> <div style="padding:10px; background:var(--background-color-base, white); color:inherit; border:1px #666 solid;"> <div class="user-block colocation-webhost" style="margin-bottom: 0.5em; background-color: #ffefd5; border: 1px solid #AAA; padding: 0.7em;"> <figure class="mw-halign-left" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/53/Server-multiple.svg/40px-Server-multiple.svg.png" decoding="async" width="40" height="57" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/53/Server-multiple.svg/60px-Server-multiple.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/53/Server-multiple.svg/80px-Server-multiple.svg.png 2x" data-file-width="744" data-file-height="1052" /></span><figcaption></figcaption></figure><b>The <a href="/wiki/IP_address" title="IP address">IP address</a> that you are currently using has been blocked because it is believed to be a <a href="/wiki/Web_hosting_service" title="Web hosting service">web host provider</a> or <a href="/wiki/Colocation_centre" title="Colocation centre">colocation provider</a>.</b> To prevent abuse, <a href="/wiki/Wikipedia:Open_proxies" title="Wikipedia:Open proxies">web hosts and colocation providers may be blocked</a> from editing Wikipedia. <div style="border-top: 1px solid #AAA; clear: both">You will not be able to edit Wikipedia using a web host or colocation provider because it hides your IP address, much like a <a href="/wiki/Wikipedia:Open_proxies" title="Wikipedia:Open proxies">proxy</a> or <a href="/wiki/Virtual_private_network" title="Virtual private network">VPN</a>. <p><b>We recommend that you attempt to use another connection to edit.</b> For example, if you use a proxy or VPN to connect to the internet, turn it off when editing Wikipedia. If you edit using a mobile connection, try using a Wi-Fi connection, and vice versa. If you are using a corporate internet connection, switch to a different Wi-Fi network. If you have a Wikipedia account, please log in. </p><p>If you do not have any other way to edit Wikipedia, you will need to <a href="/wiki/Wikipedia:IP_block_exemption#Requesting_and_granting_exemption" title="Wikipedia:IP block exemption">request an IP block exemption</a>. </p> <style data-mw-deduplicate="TemplateStyles:r1214851843">.mw-parser-output .hidden-begin{box-sizing:border-box;width:100%;padding:5px;border:none;font-size:95%}.mw-parser-output .hidden-title{font-weight:bold;line-height:1.6;text-align:left}.mw-parser-output .hidden-content{text-align:left}@media all and (max-width:500px){.mw-parser-output .hidden-begin{width:auto!important;clear:none!important;float:none!important}}</style><div class="hidden-begin mw-collapsible mw-collapsed" style=""><div class="hidden-title skin-nightmode-reset-color" style="text-align:center;">How to appeal if you are confident that your connection does not use a colocation provider's IP address:</div><div class="hidden-content mw-collapsible-content" style=""> If you are confident that you are not using a web host, you may <a href="/wiki/Wikipedia:Appealing_a_block" title="Wikipedia:Appealing a block">appeal this block</a> by adding the following text on your <a href="/wiki/Help:Talk_pages" title="Help:Talk pages">talk page</a>: <code>&#123;&#123;<a href="/wiki/Template:Unblock" title="Template:Unblock">unblock</a>&#124;reason=Caught by a colocation web host block but this host or IP is not a web host. My IP address is _______. <i>Place any further information here.</i> &#126;&#126;&#126;&#126;&#125;&#125;</code>. <b>You must fill in the blank with your IP address for this block to be investigated.</b> Your IP address can be determined <span class="plainlinks"><b><a class="external text" href="https://en.wikipedia.org/wiki/Wikipedia:Get_my_IP_address?withJS=MediaWiki:Get-my-ip.js">here</a></b></span>. Alternatively, if you wish to keep your IP address private you can use the <a href="/wiki/Wikipedia:Unblock_Ticket_Request_System" title="Wikipedia:Unblock Ticket Request System">unblock ticket request system</a>. There are several reasons you might be editing using the IP address of a web host or colocation provider (such as if you are using VPN software or a business network); please use this method of appeal only if you think your IP address is in fact not a web host or colocation provider.</div></div> <p><span class="sysop-show" style="font-size: 85%;"><span style="border:#707070 solid 1px;background-color:#ffe0e0;padding:2px"><b>Administrators:</b></span> The <a href="/wiki/Wikipedia:IP_block_exemption" title="Wikipedia:IP block exemption">IP block exemption</a> user right should only be applied to allow users to edit using web host in exceptional circumstances, and requests should usually be directed to the functionaries team via email. If you intend to give the IPBE user right, a <a href="/wiki/Wikipedia:CheckUser" title="Wikipedia:CheckUser">CheckUser</a> needs to take a look at the account. This can be requested most easily at <a href="/wiki/Wikipedia:SPI#Quick_CheckUser_requests" class="mw-redirect" title="Wikipedia:SPI">SPI Quick Checkuser Requests</a>. <b>Unblocking</b> an IP or IP range with this template <b>is highly discouraged</b> without at least contacting the blocking administrator.</span> </p> </div></div> </div> <p>This block will expire on 18:23, 24 August 2026. Your current IP address is 8.222.208.146. </p> <div class="paragraphbreak" style="margin-top:0.5em"></div><div style="font-size: 16px;"> <p>Even when blocked, you will <i>usually</i> still be able to edit your <a href="/wiki/Special:MyTalk" title="Special:MyTalk">user talk page</a>, as well as <a href="/wiki/Wikipedia:Emailing_users" title="Wikipedia:Emailing users">email</a> administrators and other editors. </p> </div> <div class="paragraphbreak" style="margin-top:0.5em"></div><div style="font-size: 16px;"> <p>For information on how to proceed, please read the <b><a href="/wiki/Wikipedia:Appealing_a_block#Common_questions" title="Wikipedia:Appealing a block">FAQ for blocked users</a></b> and the <a href="/wiki/Wikipedia:Appealing_a_block" title="Wikipedia:Appealing a block">guideline on block appeals</a>. The <a href="/wiki/Wikipedia:Guide_to_appealing_blocks" title="Wikipedia:Guide to appealing blocks">guide to appealing blocks</a> may also be helpful. </p> </div> <p>Other useful links: <a href="/wiki/Wikipedia:Blocking_policy" title="Wikipedia:Blocking policy">Blocking policy</a> &#183; <a href="/wiki/Help:I_have_been_blocked" title="Help:I have been blocked">Help:I have been blocked</a> </p> </div></li><li class="mw-permissionerror-globalblocking-blockedtext-range"> <div id="mw-blocked-text" style="border: 1px solid #AAA; background-color: var(--background-color-warning-subtle, ivory); color: inherit; padding: 1.5em; width: 100%; box-sizing: border-box;"> <div style="text-align: center;"><span style="font-size: 26px;"><span typeof="mw:File"><a href="/wiki/File:Stop_hand_nuvola.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/en/thumb/f/f1/Stop_hand_nuvola.svg/50px-Stop_hand_nuvola.svg.png" decoding="async" width="50" height="50" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/f/f1/Stop_hand_nuvola.svg/75px-Stop_hand_nuvola.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/f/f1/Stop_hand_nuvola.svg/100px-Stop_hand_nuvola.svg.png 2x" data-file-width="240" data-file-height="240" /></a></span><b> This IP address range has been <a href="https://meta.wikimedia.org/wiki/Global_blocks" class="extiw" title="m:Global blocks">globally blocked</a>.</b></span><br /><span style="font-size: 18px;">This does not affect your ability to <i>read</i> Wikipedia pages.</span></div><div class="paragraphbreak" style="margin-top:0.5em"></div><b>Most people who see this message have done nothing wrong.</b> Some kinds of blocks restrict editing from specific service providers or telecom companies in response to recent abuse or vandalism, and can sometimes affect other users who are unrelated to that abuse. Review the information below for assistance if you do not believe that you have done anything wrong.<div class="paragraphbreak" style="margin-top:0.5em"></div><div class="paragraphbreak" style="margin-top:0.5em"></div> <p>This block affects editing on all Wikimedia wikis. </p><p>The IP address or range 8.222.128.0/17 has been globally <a href="/wiki/Wikipedia:Blocking_policy" title="Wikipedia:Blocking policy">blocked</a> by <a href="/wiki/User:Jon_Kolbert" title="User:Jon Kolbert">‪Jon Kolbert‬</a> for the following reason(s): </p> <div style="padding:10px; background:var(--background-color-base, white); color:inherit; border:1px #666 solid;"> <p><a href="https://meta.wikimedia.org/wiki/Special:MyLanguage/NOP" class="extiw" title="m:Special:MyLanguage/NOP">Open proxy/Webhost</a>: See the <a href="https://meta.wikimedia.org/wiki/WM:OP/H" class="extiw" title="m:WM:OP/H">help page</a> if you are affected </p> </div> <p>This block will expire on 15:12, 27 August 2028. Your current IP address is 8.222.208.146. </p> <div class="paragraphbreak" style="margin-top:0.5em"></div><div style="font-size: 16px;"> <p>Even while globally blocked, you will <i>usually</i> still be able to edit pages on <a href="https://meta.wikimedia.org/wiki/" class="extiw" title="m:">Meta-Wiki</a>. </p> </div> <div class="paragraphbreak" style="margin-top:0.5em"></div><div style="font-size: 16px;"> <p>If you believe you were blocked by mistake, you can find additional information and instructions in the <a href="https://meta.wikimedia.org/wiki/Special:MyLanguage/No_open_proxies" class="extiw" title="m:Special:MyLanguage/No open proxies">No open proxies</a> global policy. Otherwise, to discuss the block please <a href="https://meta.wikimedia.org/wiki/Steward_requests/Global" class="extiw" title="m:Steward requests/Global">post a request for review on Meta-Wiki</a>. You could also send an email to the <a href="https://meta.wikimedia.org/wiki/Special:MyLanguage/Stewards" class="extiw" title="m:Special:MyLanguage/Stewards">stewards</a> <a href="https://meta.wikimedia.org/wiki/Special:MyLanguage/VRT" class="extiw" title="m:Special:MyLanguage/VRT">VRT</a> queue at <kbd>stewards@wikimedia.org</kbd> including all above details. </p> </div> <p>Other useful links: <a href="https://meta.wikimedia.org/wiki/Global_blocks" class="extiw" title="m:Global blocks">Global blocks</a> &#183; <a href="/wiki/Help:I_have_been_blocked" title="Help:I have been blocked">Help:I have been blocked</a> </p> </div></li></ul><hr /> <div id="viewsourcetext">You can view and copy the source of this page:</div><textarea readonly="" accesskey="," id="wpTextbox1" cols="80" rows="25" style="" class="mw-editfont-monospace" lang="en" dir="ltr" name="wpTextbox1">== History == === Earlier guidelines (1995–1998) === The first web accessibility guideline was compiled by [[Gregg Vanderheiden]] and released in January 1995, just after the 1994 Second International Conference on the World-Wide Web (WWW II) in Chicago (where [[Tim Berners-Lee]] first mentioned disability access in a keynote speech after seeing a pre-conference workshop on accessibility led by [[Mike Paciello]]).&lt;ref>{{cite web |url=http://trace.wisc.edu/archive/html_guidelines/version1.html |title=Design of HTML (Mosaic) Pages to Increase their Accessibility to Users with Disabilities; Strategies for Today and Tomorrow |last=Vanderheiden |first=Gregg C. |publisher=Trace Center, [[University of Wisconsin–Madison]] |date=31 January 1995 |access-date=2012-09-22 |archive-date=15 July 2012 |archive-url=https://archive.today/20120715151754/http://trace.wisc.edu/archive/html_guidelines/version1.html |url-status=live }}&lt;/ref> Over 38 different Web access guidelines followed from various authors and organizations over the next few years.&lt;ref>{{cite web |url=http://www.w3.org/WAI/GL/central.htm#REF.Ref |title=References: Designing Accessible HTML Pages -- guidelines and overview documents |publisher=[[World Wide Web Consortium]] |access-date=2012-09-22 |archive-date=2 March 2012 |archive-url=https://web.archive.org/web/20120302001833/http://www.w3.org/WAI/GL/central.htm#REF.Ref |url-status=live }}&lt;/ref> These were brought together in the ''Unified Web Site Accessibility Guidelines'' compiled at the [[University of Wisconsin–Madison]].&lt;ref>{{cite web |url=http://trace.wisc.edu/ |title=Trace Center |publisher=Trace Center, [[University of Wisconsin–Madison]] |access-date=2012-09-22 |archive-date=19 September 2012 |archive-url=https://web.archive.org/web/20120919092108/http://trace.wisc.edu/ |url-status=live }}&lt;/ref> Version 8 of the ''Unified Web Site Accessibility Guidelines'', published in 1998, served as the starting point for the W3C's WCAG 1.0.&lt;ref>{{cite web |url=http://www.w3.org/WAI/GL/central.htm |title=Unified Web Site Accessibility Guidelines |publisher=Trace Center, [[University of Wisconsin–Madison]] |editor-first=Gregg C. |editor-last=Vanderheiden |editor2-first=Wendy A. |editor2-last=Chisholm |date=20 January 1998 |access-date=2012-09-22 |archive-date=2 March 2012 |archive-url=https://web.archive.org/web/20120302001833/http://www.w3.org/WAI/GL/central.htm |url-status=live }}&lt;/ref> ===Version 1 (1999–2000)=== The WCAG 1.0 were published and became a [[W3C recommendation]] on 5 May 1999. In February 2008, The WCAG Samurai, a group of developers independent of the W3C, and led by [[Joe Clark (writer)|Joe Clark]], published corrections for, and extensions to, the WCAG 1.0.&lt;ref>{{Cite web |title=Home Page |url=http://www.wcagsamurai.org |url-status=dead |archive-url=https://web.archive.org/web/20130113063317/http://www.wcagsamurai.org |archive-date=2013-01-13 |website=WCAG Samurai}}&lt;/ref> === Version 2 (2001–present) === The first concept proposal of WCAG 2.0 was published on 25 January 2001. In the following years new versions were published intended to solicit feedback from accessibility experts and members of the disability community. On 27 April 2006 a "Last Call Working Draft" was published.&lt;ref>{{cite web |date=2006-04-27 |editor1-last=Caldwell |editor1-first=Ben |editor2-last=Chisholm |editor2-first=Wendy |editor3-last=Slatin |editor3-first=John |editor4-last=Vanderheiden |editor4-first=Gregg |title=Web Content Accessibility Guidelines 2.0 – W3C Working Draft 27 April 2006 |url=http://www.w3.org/TR/2006/WD-WCAG20-20060427/ |url-status=live |archive-url=https://web.archive.org/web/20140425152015/http://www.w3.org/TR/2006/WD-WCAG20-20060427/ |archive-date=25 April 2014 |access-date=2021-04-06 |publisher=W3C |collaboration=Web Content Accessibility Guidelines Working Group}}&lt;/ref> Due to the many amendments that were necessary, WCAG 2.0 was published again as a concept proposal on 17 May 2007, followed by a second "Last Call Working Draft" on 11 December 2007.&lt;ref>{{cite web |date=2007-05-17 |editor1-last=Caldwell |editor1-first=Ben |editor2-last=Cooper |editor2-first=Michael |editor3-last=Guarino Reid |editor3-first=Loretta |editor4-last=Vanderheiden |editor4-first=Gregg |editor5-last=Chisholm |editor5-first=Wendy |editor6-last=Slatin |editor6-first=John |editor7-last=White |editor7-first=Jason |title=Web Content Accessibility Guidelines 2.0 – W3C Working Draft 17 May 2007 |url=http://www.w3.org/TR/2007/WD-WCAG20-20070517/ |url-status=live |archive-url=https://web.archive.org/web/20140623192307/http://www.w3.org/TR/2007/WD-WCAG20-20070517/ |archive-date=23 June 2014 |access-date=2021-04-06 |publisher=W3C |collaboration=Web Content Accessibility Guidelines Working Group}}&lt;/ref>&lt;ref>{{cite web |date=2017-12-11 |editor1-last=Caldwell |editor1-first=Ben |editor2-last=Cooper |editor2-first=Michael |editor3-last=Guarino Reid |editor3-first=Loretta |editor4-last=Vanderheiden |editor4-first=Gregg |editor5-last=Chisholm |editor5-first=Wendy |editor6-last=Slatin |editor6-first=John |editor7-last=White |editor7-first=Jason |title=Web Content Accessibility Guidelines 2.0 – W3C Working Draft 11 December 2007 |url=http://www.w3.org/TR/2007/WD-WCAG20-20071211/ |url-status=live |archive-url=https://web.archive.org/web/20140428155412/http://www.w3.org/TR/2007/WD-WCAG20-20071211/ |archive-date=28 April 2014 |access-date=2021-04-06 |publisher=W3C |collaboration=Web Content Accessibility Guidelines Working Group}}&lt;/ref> In April 2008 the guidelines became a "Candidate Recommendation".&lt;ref>{{cite web |title=WCAG 2.0 Candidate Recommendation Implementation Information |url=http://www.w3.org/WAI/WCAG20/CR/Overview.html |url-status=live |archive-url=https://web.archive.org/web/20220809145013/https://www.w3.org/WAI/WCAG20/CR/Overview.html |archive-date=9 August 2022 |access-date=21 April 2014 |publisher=W3C}}&lt;/ref> On 3 November 2008 the guidelines became a "Proposed Recommendation". WCAG 2.0 was published as a W3C Recommendation on 11 December 2008.&lt;ref>{{cite web |title=Web Content Accessibility Guidelines (WCAG) 2.0 – W3C Recommendation 11 December 2008 |url=http://www.w3.org/TR/2008/REC-WCAG20-20081211/ |url-status=live |archive-url=https://web.archive.org/web/20180628234943/http://www.w3.org/TR/2008/REC-WCAG20-20081211/ |archive-date=28 June 2018 |access-date=27 July 2013 |publisher=W3.org}}&lt;/ref>&lt;ref>W3C: [http://www.w3.org/2008/12/wcag20-pressrelease.html W3C Web Standard Defines Accessibility for Next Generation Web] {{Webarchive|url=https://web.archive.org/web/20081212214910/http://www.w3.org/2008/12/wcag20-pressrelease.html|date=12 December 2008}} (press release, 11 December 2008).&lt;/ref> In October 2012, WCAG 2.0 were accepted by the [[International Organization for Standardization]] as an ISO International Standard, ISO/IEC 40500:2012.&lt;ref name="W3C-ISO">{{cite web |last=Henry |first=Shawn |date=2012-10-15 |title=WCAG 2.0 is now also ISO/IEC 40500! |url=http://www.w3.org/QA/2012/10/wcag_20_is_now_also_isoiec_405.html |url-status=live |archive-url=https://web.archive.org/web/20130909140755/http://www.w3.org/QA/2012/10/wcag_20_is_now_also_isoiec_405.html |archive-date=9 September 2013 |access-date=23 October 2012 |publisher=[[World Wide Web Consortium]]}}&lt;/ref>&lt;ref name="W3C-announce">{{cite web |date=2012-10-15 |title=W3C Web Content Accessibility Guidelines 2.0 approved as an ISO/IEC International Standard |url=http://www.w3.org/2012/07/wcag2pas-pr.html |url-status=live |archive-url=https://web.archive.org/web/20121018085658/http://www.w3.org/2012/07/wcag2pas-pr.html |archive-date=18 October 2012 |access-date=23 October 2012 |publisher=[[World Wide Web Consortium]]}}&lt;/ref>&lt;ref name="ISO">{{cite web |title=ISO/IEC 40500:2012 - Information technology -- W3C Web Content Accessibility Guidelines (WCAG) 2.0 |url=http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=58625 |url-status=live |archive-url=https://web.archive.org/web/20130308114523/http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=58625 |archive-date=8 March 2013 |access-date=23 October 2012 |publisher=[[International Organization for Standardization|ISO]]}}&lt;/ref>&lt;ref name="iso-standard" /> In early 2014, WCAG 2.0's Level A and Level AA success criteria were incorporated as references in clause 9.2 ("Web content requirements") of the European standard [[EN 301 549]] published by [[ETSI]].&lt;ref>ETSI: [http://www.etsi.org/deliver/etsi_en/301500_301599/301549/01.01.02_60/en_301549v010102p.pdf EN 301 549 V1.1.1 (2014-02): Accessibility requirements suitable for public procurement of ICT products and services in Europe] {{Webarchive|url=https://web.archive.org/web/20151031080746/http://www.etsi.org/deliver/etsi_en/301500_301599/301549/01.01.02_60/en_301549v010102p.pdf|date=31 October 2015}}. Accessed 27 November 2015.&lt;/ref> EN 301 549 was produced in response to a mandate that the European Commission gave to the three official European standardisation bodies ([[European Committee for Standardization|CEN]], [[European Committee for Electrotechnical Standardization|CENELEC]] and ETSI) and is the first European standard for ICT products and services.&lt;ref>CEN-CENELEC: [http://www.cencenelec.eu/News/Press_Releases/Pages/PR-2014-03.aspx New European Standard will help to make ICT products and services accessible for all] {{Webarchive|url=https://web.archive.org/web/20151208180713/http://www.cencenelec.eu/News/Press_Releases/Pages/PR-2014-03.aspx|date=8 December 2015}}. 19 February 2014. Accessed 27 November 2015.&lt;/ref>&lt;ref>CEN-CENELEC: [http://www.cencenelec.eu/standards/Sectors/Accessibility/PublicProcurement/Pages/M376.aspx Mandate 376] {{Webarchive|url=https://web.archive.org/web/20160310064556/http://www.cencenelec.eu/standards/Sectors/Accessibility/PublicProcurement/Pages/M376.aspx|date=10 March 2016}}. (No date). Accessed 27 November 2015.&lt;/ref> WCAG 2.2 became a W3C Recommendation on 5 October 2023.&lt;ref name="wcag-22" /> Nine new criteria make their definitive debut in this new version of the WCAG standard. New sections have also been introduced that detail aspects of the specification which may impact privacy and security. ===Version 3 (under development)=== In early 2021, the Accessibility Guidelines Working Group presented the first public working draft (FPWD) of the future WCAG 3.0, intended to provide a range of recommendations for making web content more accessible. The [https://www.w3.org/TR/wcag-3.0/ WCAG 3.0 working draft] was last updated in May 2024. No part of WCAG 3.0 is an official recommendation at this time. WCAG 3.0 is a draft undergoing significant development efforts, and the expected release date as an official recommendation is not defined. </textarea><div class="templatesUsed"></div><p id="mw-returnto">Return to <a href="/wiki/Web_Content_Accessibility_Guidelines" title="Web Content Accessibility Guidelines">Web Content Accessibility Guidelines</a>.</p> <!--esi <esi:include src="/esitest-fa8a495983347898/content" /> --><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/wiki/Web_Content_Accessibility_Guidelines">https://en.wikipedia.org/wiki/Web_Content_Accessibility_Guidelines</a>"</div></div> <div id="catlinks" class="catlinks catlinks-allhidden" data-mw="interface"></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Privacy policy</a></li> <li id="footer-places-about"><a href="/wiki/Wikipedia:About">About Wikipedia</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Wikipedia:General_disclaimer">Disclaimers</a></li> <li id="footer-places-contact"><a href="//en.wikipedia.org/wiki/Wikipedia:Contact_us">Contact Wikipedia</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Code of Conduct</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Developers</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/en.wikipedia.org">Statistics</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Cookie statement</a></li> <li id="footer-places-mobileview"><a href="//en.m.wikipedia.org/w/index.php?title=Web_Content_Accessibility_Guidelines&amp;action=edit&amp;section=1&amp;mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">Mobile view</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> </div> </div> </div> <div class="vector-settings" id="p-dock-bottom"> <ul></ul> </div><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-5cd4cd96d5-rxqxm","wgBackendResponseTime":237,"wgPageParseReport":{"limitreport":{"cputime":"0.060","walltime":"0.077","ppvisitednodes":{"value":418,"limit":1000000},"postexpandincludesize":{"value":17740,"limit":2097152},"templateargumentsize":{"value":6556,"limit":2097152},"expansiondepth":{"value":9,"limit":100},"expensivefunctioncount":{"value":0,"limit":500},"unstrip-depth":{"value":0,"limit":20},"unstrip-size":{"value":469,"limit":5000000},"entityaccesscount":{"value":0,"limit":400},"timingprofile":["100.00% 54.924 1 -total"," 99.86% 54.847 2 Template:Blocked_text"," 42.27% 23.216 2 Template:Replace"," 40.51% 22.249 1 Template:Colocationwebhost"," 36.74% 20.178 1 Template:Hidden"," 15.14% 8.313 1 Template:Tlx"," 14.77% 8.111 1 Template:Hidden_begin"," 2.75% 1.509 1 Template:Hidden_end"," 2.29% 1.259 1 MediaWiki:Wikimedia-globalblocking-blockedtext-mistake"," 1.53% 0.843 1 MediaWiki:Wikimedia-globalblocking-blockedtext-mistake-email-steward"]},"scribunto":{"limitreport-timeusage":{"value":"0.012","limit":"10.000"},"limitreport-memusage":{"value":1043364,"limit":52428800}},"cachereport":{"origin":"mw-web.codfw.main-5cd4cd96d5-rxqxm","timestamp":"20241127080958","ttl":2592000,"transientcontent":false}}});});</script> </body> </html>

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