The W3C Markup Validation Service

<!doctype html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html;charset=utf-8"> <title>The W3C Markup Validation Service</title> <link rel="help" href="mailto:www-validator@w3.org"> <link rel="shortcut icon" href="images/favicon.ico" type="image/x-icon"> <link rel="start" href="./" title="Home Page"> <link rel="stylesheet" href="./style/base" type="text/css" media="all"> <meta name="keywords" content="HTML, HyperText Markup Language, Validation, W3C Markup Validation Service"> <meta name="description" content="W3C's easy-to-use markup validation service, based on SGML and XML parsers."> <link rel="alternate" type="application/atom+xml" href="https://www.w3.org/QA/Tools/validator-whatsnew.atom"> </head> <body> <div id="banner"> <h1 id="title"> <a href="https://www.w3.org/"> <img alt="W3C Logo" width="110" height="61" id="logo" src="./images/w3c.png" /> </a> <a href="./"><span>Markup Validation Service</span></a> </h1> <p id="tagline">Check the markup (HTML, XHTML, …) of Web documents</p> </div> <div id="frontforms"> <ul id="tabset_tabs"> <li><a href="#validate-by-uri"><span>Validate by</span> URI</a></li> <li><a href="#validate-by-upload"><span>Validate by</span> File Upload</a></li> <li><a href="#validate-by-input"><span>Validate by</span> Direct Input</a></li> </ul> <div id="fields"> <fieldset id="validate-by-uri" class="tabset_content front"><legend class="tabset_label">Validate by URI</legend> <form method="get" action="check"> <p class="instructions"> Validate a document online: </p> <p> <label title="Address of page to Validate" for="uri">Address:</label> <input type="text" name="uri" id="uri" inputmode="url" size="45" /> </p> <fieldset id="extra_opt_uri" class="moreoptions"> <legend class="toggletext"><a href="#validate_by_uri+with_options">More Options</a></legend> <div class="options"> <table> <tr> <th> <label for="uri-charset">Character Encoding</label> </th> <td> <select id="uri-charset" name="charset"> <option value="(detect automatically)" selected="selected">(detect automatically)</option> <option value="utf-8">utf-8 (Unicode, worldwide)</option> <option value="utf-16">utf-16 (Unicode, worldwide)</option> <option value="iso-8859-1">iso-8859-1 (Western Europe)</option> <option value="iso-8859-2">iso-8859-2 (Central Europe)</option> <option value="iso-8859-3">iso-8859-3 (Southern Europe)</option> <option value="iso-8859-4">iso-8859-4 (North European)</option> <option value="iso-8859-5">iso-8859-5 (Cyrillic)</option> <option value="iso-8859-6-i">iso-8859-6-i (Arabic)</option> <option value="iso-8859-7">iso-8859-7 (Greek)</option> <option value="iso-8859-8">iso-8859-8 (Hebrew, visual)</option> <option value="iso-8859-8-i">iso-8859-8-i (Hebrew, logical)</option> <option value="iso-8859-9">iso-8859-9 (Turkish)</option> <option value="iso-8859-10">iso-8859-10 (Latin 6)</option> <option value="iso-8859-11">iso-8859-11 (Latin/Thai)</option> <option value="iso-8859-13">iso-8859-13 (Latin 7, Baltic Rim)</option> <option value="iso-8859-14">iso-8859-14 (Latin 8, Celtic)</option> <option value="iso-8859-15">iso-8859-15 (Latin 9)</option> <option value="iso-8859-16">iso-8859-16 (Latin 10)</option> <option value="us-ascii">us-ascii (basic English)</option> <option value="euc-jp">euc-jp (Japanese, Unix)</option> <option value="shift_jis">shift_jis (Japanese, Win/Mac)</option> <option value="iso-2022-jp">iso-2022-jp (Japanese, email)</option> <option value="euc-kr">euc-kr (Korean)</option> <option value="ksc_5601">ksc_5601 (Korean)</option> <option value="gb2312">gb2312 (Chinese, simplified)</option> <option value="gb18030">gb18030 (Chinese, simplified)</option> <option value="big5">big5 (Chinese, traditional)</option> <option value="big5-HKSCS">Big5-HKSCS (Chinese, Hong Kong)</option> <option value="tis-620">tis-620 (Thai)</option> <option value="koi8-r">koi8-r (Russian)</option> <option value="koi8-u">koi8-u (Ukrainian)</option> <option value="iso-ir-111">iso-ir-111 (Cyrillic KOI-8)</option> <option value="macintosh">macintosh (MacRoman)</option> <option value="windows-1250">windows-1250 (Central Europe)</option> <option value="windows-1251">windows-1251 (Cyrillic)</option> <option value="windows-1252">windows-1252 (Western Europe)</option> <option value="windows-1253">windows-1253 (Greek)</option> <option value="windows-1254">windows-1254 (Turkish)</option> <option value="windows-1255">windows-1255 (Hebrew)</option> <option value="windows-1256">windows-1256 (Arabic)</option> <option value="windows-1257">windows-1257 (Baltic Rim)</option> </select> </td> <td><input id="uri-fbc" name="fbc" type="checkbox" value="1" /><label for="uri-fbc" title="Use selected Character encoding only if missing in the document">Only if missing</label></td> </tr> <tr> <th> <label for="uri-doctype">Document Type</label> </th> <td> <select id="uri-doctype" name="doctype"> <option value="Inline" selected="selected">(detect automatically)</option> <option value="HTML5">HTML5 (experimental)</option> <option value="XHTML 1.0 Strict">XHTML 1.0 Strict</option> <option value="XHTML 1.0 Transitional">XHTML 1.0 Transitional</option> <option value="XHTML 1.0 Frameset">XHTML 1.0 Frameset</option> <option value="HTML 4.01 Strict">HTML 4.01 Strict</option> <option value="HTML 4.01 Transitional">HTML 4.01 Transitional</option> <option value="HTML 4.01 Frameset">HTML 4.01 Frameset</option> <option value="HTML 4.01 + RDFa 1.1">HTML 4.01 + RDFa 1.1</option> <option value="HTML 3.2">HTML 3.2</option> <option value="HTML 2.0">HTML 2.0</option> <option value="ISO/IEC 15445:2000 ("ISO HTML")">ISO/IEC 15445:2000 ("ISO HTML")</option> <option value="XHTML 1.1">XHTML 1.1</option> <option value="XHTML + RDFa">XHTML + RDFa</option> <option value="XHTML Basic 1.0">XHTML Basic 1.0</option> <option value="XHTML Basic 1.1">XHTML Basic 1.1</option> <option value="XHTML Mobile Profile 1.2">XHTML Mobile Profile 1.2</option> <option value="XHTML-Print 1.0">XHTML-Print 1.0</option> <option value="XHTML 1.1 plus MathML 2.0">XHTML 1.1 plus MathML 2.0</option> <option value="XHTML 1.1 plus MathML 2.0 plus SVG 1.1">XHTML 1.1 plus MathML 2.0 plus SVG 1.1</option> <option value="MathML 2.0">MathML 2.0</option> <option value="SVG 1.0">SVG 1.0</option> <option value="SVG 1.1">SVG 1.1</option> <option value="SVG 1.1 Tiny">SVG 1.1 Tiny</option> <option value="SVG 1.1 Basic">SVG 1.1 Basic</option> <option value="SMIL 1.0">SMIL 1.0</option> <option value="SMIL 2.0">SMIL 2.0</option> </select> </td> <td><label for="uri-fbd"><input id="uri-fbd" name="fbd" type="checkbox" value="1" title="Use selected Document Type only if missing in the document" />Only if missing</label></td> </tr> <tr> <td colspan="3"><input type="radio" name="group" id="urigroup_no" value="0" checked="checked" /><label for="urigroup_no">List Messages Sequentially</label> <input type="radio" name="group" id="urigroup_yes" value="1" /><label for="urigroup_yes">Group Error Messages by Type</label></td> </tr> <tr> <td><input id="uri-ss" name="ss" type="checkbox" value="1" /><label title="Show Page Source" for="uri-ss">Show Source</label></td> <td colspan="2"><input id="uri-st" name="st" type="checkbox" value="1" /><label for="uri-st">Clean up Markup with HTML-Tidy</label> </td> </tr> <tr> <td><input id="uri-outline" name="outline" type="checkbox" value="1" /><label title="Show an Outline of the document" for="uri-outline">Show Outline</label> </td> <td><input id="uri-No200" name="No200" type="checkbox" value="1" /><label title="Validate also pages for which the HTTP status code indicates an error" for="uri-No200">Validate error pages</label></td> <td><input id="uri-verbose" name="verbose" type="checkbox" value="1" /><label title="Verbose Output" for="uri-verbose">Verbose Output</label></td> </tr> </table> </div> </fieldset> <p class="submit_button"> <input type="submit" title="Submit for validation" value="Check" /> </p> </form> </fieldset> <fieldset id="validate-by-upload" class="tabset_content front"><legend class="tabset_label">Validate by File Upload</legend> <form method="post" enctype="multipart/form-data" action="check"> <p class="instructions">Upload a document for validation:</p> <p><label title="Choose a Local File to Upload and Validate" for="uploaded_file">File:</label> <input type="file" id="uploaded_file" name="uploaded_file" size="30" /></p> <fieldset id="extra_opt_upload" class="moreoptions"> <legend class="toggletext"><a href="#validate_by_upload+with_options">More Options</a></legend> <div class="options"> <table> <tr> <th> <label for="upload-charset">Character Encoding</label> </th> <td> <select id="upload-charset" name="charset"> <option value="(detect automatically)" selected="selected">(detect automatically)</option> <option value="utf-8">utf-8 (Unicode, worldwide)</option> <option value="utf-16">utf-16 (Unicode, worldwide)</option> <option value="iso-8859-1">iso-8859-1 (Western Europe)</option> <option value="iso-8859-2">iso-8859-2 (Central Europe)</option> <option value="iso-8859-3">iso-8859-3 (Southern Europe)</option> <option value="iso-8859-4">iso-8859-4 (North European)</option> <option value="iso-8859-5">iso-8859-5 (Cyrillic)</option> <option value="iso-8859-6-i">iso-8859-6-i (Arabic)</option> <option value="iso-8859-7">iso-8859-7 (Greek)</option> <option value="iso-8859-8">iso-8859-8 (Hebrew, visual)</option> <option value="iso-8859-8-i">iso-8859-8-i (Hebrew, logical)</option> <option value="iso-8859-9">iso-8859-9 (Turkish)</option> <option value="iso-8859-10">iso-8859-10 (Latin 6)</option> <option value="iso-8859-11">iso-8859-11 (Latin/Thai)</option> <option value="iso-8859-13">iso-8859-13 (Latin 7, Baltic Rim)</option> <option value="iso-8859-14">iso-8859-14 (Latin 8, Celtic)</option> <option value="iso-8859-15">iso-8859-15 (Latin 9)</option> <option value="iso-8859-16">iso-8859-16 (Latin 10)</option> <option value="us-ascii">us-ascii (basic English)</option> <option value="euc-jp">euc-jp (Japanese, Unix)</option> <option value="shift_jis">shift_jis (Japanese, Win/Mac)</option> <option value="iso-2022-jp">iso-2022-jp (Japanese, email)</option> <option value="euc-kr">euc-kr (Korean)</option> <option value="ksc_5601">ksc_5601 (Korean)</option> <option value="gb2312">gb2312 (Chinese, simplified)</option> <option value="gb18030">gb18030 (Chinese, simplified)</option> <option value="big5">big5 (Chinese, traditional)</option> <option value="big5-HKSCS">Big5-HKSCS (Chinese, Hong Kong)</option> <option value="tis-620">tis-620 (Thai)</option> <option value="koi8-r">koi8-r (Russian)</option> <option value="koi8-u">koi8-u (Ukrainian)</option> <option value="iso-ir-111">iso-ir-111 (Cyrillic KOI-8)</option> <option value="macintosh">macintosh (MacRoman)</option> <option value="windows-1250">windows-1250 (Central Europe)</option> <option value="windows-1251">windows-1251 (Cyrillic)</option> <option value="windows-1252">windows-1252 (Western Europe)</option> <option value="windows-1253">windows-1253 (Greek)</option> <option value="windows-1254">windows-1254 (Turkish)</option> <option value="windows-1255">windows-1255 (Hebrew)</option> <option value="windows-1256">windows-1256 (Arabic)</option> <option value="windows-1257">windows-1257 (Baltic Rim)</option> </select> </td> <td><input id="upload-fbc" name="fbc" type="checkbox" value="1" /><label for="upload-fbc" title="Use selected Character encoding only if missing in the document">Only if missing</label></td> </tr> <tr> <th> <label for="upload-doctype">Document Type</label> </th> <td> <select id="upload-doctype" name="doctype"> <option value="Inline" selected="selected">(detect automatically)</option> <option value="HTML5">HTML5 (experimental)</option> <option value="XHTML 1.0 Strict">XHTML 1.0 Strict</option> <option value="XHTML 1.0 Transitional">XHTML 1.0 Transitional</option> <option value="XHTML 1.0 Frameset">XHTML 1.0 Frameset</option> <option value="HTML 4.01 Strict">HTML 4.01 Strict</option> <option value="HTML 4.01 Transitional">HTML 4.01 Transitional</option> <option value="HTML 4.01 Frameset">HTML 4.01 Frameset</option> <option value="HTML 4.01 + RDFa 1.1">HTML 4.01 + RDFa 1.1</option> <option value="HTML 3.2">HTML 3.2</option> <option value="HTML 2.0">HTML 2.0</option> <option value="ISO/IEC 15445:2000 ("ISO HTML")">ISO/IEC 15445:2000 ("ISO HTML")</option> <option value="XHTML 1.1">XHTML 1.1</option> <option value="XHTML + RDFa">XHTML + RDFa</option> <option value="XHTML Basic 1.0">XHTML Basic 1.0</option> <option value="XHTML Basic 1.1">XHTML Basic 1.1</option> <option value="XHTML Mobile Profile 1.2">XHTML Mobile Profile 1.2</option> <option value="XHTML-Print 1.0">XHTML-Print 1.0</option> <option value="XHTML 1.1 plus MathML 2.0">XHTML 1.1 plus MathML 2.0</option> <option value="XHTML 1.1 plus MathML 2.0 plus SVG 1.1">XHTML 1.1 plus MathML 2.0 plus SVG 1.1</option> <option value="MathML 2.0">MathML 2.0</option> <option value="SVG 1.0">SVG 1.0</option> <option value="SVG 1.1">SVG 1.1</option> <option value="SVG 1.1 Tiny">SVG 1.1 Tiny</option> <option value="SVG 1.1 Basic">SVG 1.1 Basic</option> <option value="SMIL 1.0">SMIL 1.0</option> <option value="SMIL 2.0">SMIL 2.0</option> </select> </td> <td><label for="upload-fbd"><input id="upload-fbd" name="fbd" type="checkbox" value="1" title="Use selected Document Type only if missing in the document" />Only if missing</label></td> </tr> <tr> <td colspan="3"><input type="radio" name="group" id="uploadgroup_no" value="0" checked="checked" /><label for="uploadgroup_no">List Messages Sequentially</label> <input type="radio" name="group" id="uploadgroup_yes" value="1" /><label for="uploadgroup_yes">Group Error Messages by Type</label></td> </tr> <tr> <td><input id="upload-ss" name="ss" type="checkbox" value="1" /><label title="Show Page Source" for="upload-ss">Show Source</label></td> <td colspan="2"><input id="upload-st" name="st" type="checkbox" value="1" /><label for="upload-st">Clean up Markup with HTML-Tidy</label> </td> </tr> <tr> <td><input id="upload-outline" name="outline" type="checkbox" value="1" /><label title="Show an Outline of the document" for="upload-outline">Show Outline</label> </td> <td><input id="upload-No200" name="No200" type="checkbox" value="1" /><label title="Validate also pages for which the HTTP status code indicates an error" for="upload-No200">Validate error pages</label></td> <td><input id="upload-verbose" name="verbose" type="checkbox" value="1" /><label title="Verbose Output" for="upload-verbose">Verbose Output</label></td> </tr> </table> </div> </fieldset> <p class="submit_button"> <input title="Submit for validation" type="submit" value="Check" /> </p> </form> <p><strong>Note</strong>: file upload may not work with Internet Explorer on some versions of Windows XP Service Pack 2, see our <a href="http://www.w3.org/QA/2005/01/Validator-IE_WinXP_SP2">information page</a> on the W3C QA Website.</p> </fieldset> <fieldset id="validate-by-input" class="tabset_content front"><legend class="tabset_label">Validate by direct input</legend> <form method="post" enctype="multipart/form-data" action="check"> <p class="instructions"><label title="Paste a complete (HTML) Document here" for="fragment">Enter the Markup to validate</label>:<br /> <textarea id="fragment" name="fragment" rows="12" cols="80"></textarea>  </p> <fieldset id="extra_opt_direct" class="moreoptions"> <legend class="toggletext"><a href="#validate_by_input+with_options">More Options</a></legend> <div class="options"> <table> <tr><th colspan="3"><input id="direct_prefill_no" name="prefill" type="radio" value="0" checked="checked" /> <label for="direct_prefill_no">Validate Full Document</label></th></tr> <tr class="subchoice" id="choice_full"> <th class="subchoice_head"><label for="direct-doctype">Use Doctype:</label></th> <td> <select id="direct-doctype" name="doctype"> <option value="Inline" selected="selected">(detect automatically)</option> <option value="HTML5">HTML5 (experimental)</option> <option value="XHTML 1.0 Strict">XHTML 1.0 Strict</option> <option value="XHTML 1.0 Transitional">XHTML 1.0 Transitional</option> <option value="XHTML 1.0 Frameset">XHTML 1.0 Frameset</option> <option value="HTML 4.01 Strict">HTML 4.01 Strict</option> <option value="HTML 4.01 Transitional">HTML 4.01 Transitional</option> <option value="HTML 4.01 Frameset">HTML 4.01 Frameset</option> <option value="HTML 4.01 + RDFa 1.1">HTML 4.01 + RDFa 1.1</option> <option value="HTML 3.2">HTML 3.2</option> <option value="HTML 2.0">HTML 2.0</option> <option value="ISO/IEC 15445:2000 ("ISO HTML")">ISO/IEC 15445:2000 ("ISO HTML")</option> <option value="XHTML 1.1">XHTML 1.1</option> <option value="XHTML + RDFa">XHTML + RDFa</option> <option value="XHTML Basic 1.0">XHTML Basic 1.0</option> <option value="XHTML Basic 1.1">XHTML Basic 1.1</option> <option value="XHTML Mobile Profile 1.2">XHTML Mobile Profile 1.2</option> <option value="XHTML-Print 1.0">XHTML-Print 1.0</option> <option value="XHTML 1.1 plus MathML 2.0">XHTML 1.1 plus MathML 2.0</option> <option value="XHTML 1.1 plus MathML 2.0 plus SVG 1.1">XHTML 1.1 plus MathML 2.0 plus SVG 1.1</option> <option value="MathML 2.0">MathML 2.0</option> <option value="SVG 1.0">SVG 1.0</option> <option value="SVG 1.1">SVG 1.1</option> <option value="SVG 1.1 Tiny">SVG 1.1 Tiny</option> <option value="SVG 1.1 Basic">SVG 1.1 Basic</option> <option value="SMIL 1.0">SMIL 1.0</option> <option value="SMIL 2.0">SMIL 2.0</option> </select></td> <td> <input id="direct-fbd" name="fbd" type="checkbox" value="1" /><label for="direct-fbd">Only if Doctype is missing</label></td> </tr> <tr><th colspan="3"><input id="direct_prefill_yes" name="prefill" type="radio" value="1" /> <label for="direct_prefill_yes">Validate HTML fragment</label></th></tr> <tr class="subchoice" id="choice_frag"> <th class="subchoice_head">Use Doctype:</th> <td colspan="2"> <input type="radio" name="prefill_doctype" id="directfill_doctype_html401" value="html401" checked="checked" /><label for="directfill_doctype_html401">HTML 4.01</label> <input type="radio" name="prefill_doctype" id="directfill_doctype_xhtml10" value="xhtml10" /><label for="directfill_doctype_xhtml10">XHTML 1.0</label></td></tr> <tr> <td colspan="3"><input type="radio" name="group" id="directgroup_no" value="0" checked="checked" /><label for="directgroup_no">List Messages Sequentially</label> <input type="radio" name="group" id="directgroup_yes" value="1" /><label for="directgroup_yes">Group Error Messages by Type</label></td> </tr> <tr> <td><input id="direct-ss" name="ss" type="checkbox" value="1" /><label title="Show Page Source" for="direct-ss">Show Source</label></td> <td colspan="2"><input id="direct-st" name="st" type="checkbox" value="1" /><label for="direct-st">Clean up Markup with HTML-Tidy</label> </td> </tr> <tr> <td><input id="direct-outline" name="outline" type="checkbox" value="1" /><label title="Show an Outline of the document" for="direct-outline">Show Outline</label> </td> <td><input id="direct-No200" name="No200" type="checkbox" value="1" /><label title="Validate also pages for which the HTTP status code indicates an error" for="direct-No200">Validate error pages</label></td> <td><input id="direct-verbose" name="verbose" type="checkbox" value="1" /><label title="Verbose Output" for="direct-verbose">Verbose Output</label></td> </tr> </table> </div> </fieldset> <p class="submit_button"> <input title="Submit for validation" type="submit" value="Check" /> </p> </form> </fieldset> </div> </div>  <div class="intro"> <p> This validator checks the <a href="docs/help.html#validation_basics" title="What is markup validation?">markup validity</a> of Web documents in HTML, XHTML, SMIL, MathML, etc. If you wish to validate specific content such as <a href="https://validator.w3.org/feed/" title="Feed validator, hosted at W3C">RSS/Atom feeds</a> or <a href="http://jigsaw.w3.org/css-validator/" title="W3C CSS Validation Service">CSS stylesheets</a>, <a href="https://validator.w3.org/mobile/" title="MobileOK Checker">MobileOK content</a>, or to <a href="https://validator.w3.org/checklink" title="W3C Link Checker">find broken links</a>, there are <a href="http://www.w3.org/QA/Tools/">other validators and tools</a> available. As an alternative you can also try our <a href="https://validator.w3.org/nu">non-DTD-based validator</a>. </p> </div> <div id="w3c-include"></div> <ul class="navbar" id="menu"> <li><a href="/" accesskey="1" title="Go to the Home Page for The W3C Markup Validation Service">Home</a><span> | </span></li> <li><a href="/about.html" title="Information About this Service">About...</a><span> | </span></li> <li><a href="/whatsnew.html" title="The changes made to this service recently">News</a><span> | </span></li> <li><a href="/docs/" accesskey="3" title="Documentation for this Service">Docs</a><span> | </span></li> <li><a href="/docs/help.html" title="Help and answers to frequently asked questions">Help & <abbr title="Frequently Asked Questions">FAQ</abbr></a><span> | </span></li> <li><a href="/feedback.html" accesskey="4" title="How to provide feedback on this service">Feedback</a><span> | </span></li> <li><a href="/contribute.html" title="How to contribute to the validator project">Contribute</a><span> | </span></li> </ul> <div id="footer"> <p id="activity_logos"> <a href="https://www.w3.org/Status" title="W3C's Open Source, bringing you free Web quality tools and more"><img src="https://www.w3.org/assets/logos/w3c/w3c-no-bars.svg" alt="W3C" width="72" height="47"><img src="./images/opensource-55x48.png" alt="Open-Source" title="We are building certified Open Source/Free Software. - see www.opensource.org" width="55" height="48"></a> </p> <p id="support_logo"> <a href="https://www.w3.org/donate/"> <img src="https://www.w3.org/QA/Tools/I_heart_validator" alt="I heart Validator logo" title="Donate to W3C" width="80" height="15"> </a> </p> <p class="copyright"><span lang="en" dir="ltr">Copyright © 2024 <a href="https://www.w3.org/">World Wide Web Consortium</a>. <abbr title="World Wide Web Consortium">W3C</abbr><sup>®</sup> <a href="https://www.w3.org/policies/#disclaimers">liability</a>, <a href="https://www.w3.org/policies/#trademarks">trademark</a> and <a rel="license" href="https://www.w3.org/copyright/document-license/" title="W3C Document License">permissive license</a> rules apply.</span></p> </div> <script src="scripts/combined"></script> <script src="https://www.w3.org/QA/Tools/w3c-include.js"></script> </body> </html>

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