This tool is an ongoing experiment in better HTML checking, and its behavior remains subject to change
Error: Attribute xmlns:fb not allowed here.
From line 1, column 16; to line 2, column 291
TYPE html>↩<html id="XenForo" lang="en-US" dir="LTR" class="Public NoJs uix_javascriptNeedsInit LoggedOut Sideb…idebar is-fullWidth navStyle_0 pageStyle_0 hasFlexbox" xmlns:fb="http://www.facebook.com/2008/fbml">↩<head
Warning: Attribute with the local name xmlns:fb is not serializable as XML 1.0.
From line 1, column 16; to line 2, column 291
TYPE html>↩<html id="XenForo" lang="en-US" dir="LTR" class="Public NoJs uix_javascriptNeedsInit LoggedOut Sideb…idebar is-fullWidth navStyle_0 pageStyle_0 hasFlexbox" xmlns:fb="http://www.facebook.com/2008/fbml">↩<head
Error: A meta element with an http-equiv attribute whose value is X-UA-Compatible must have a content attribute with the value IE=edge.
From line 11, column 1; to line 11, column 64
utf-8" />↩<meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1" />↩<meta
Error: Element dl is missing a required child element.
From line 149, column 1; to line 149, column 4
mitUnit">↩<dd>↩<inpu
dl:dt elements followed by one or
more dd elements, optionally intermixed with script-supporting elements.
div elements, optionally intermixed with script-supporting elements.
Error: Attribute results not allowed on element input at this point.
From line 183, column 1; to line 183, column 84
alInput">↩<input type="search" name="keywords" value="" placeholder="Search..." results="0" />↩</div
input:accept when type is filealt when type is imageautocomplete when type is text, search, url, tel, email, password, date, month, week, time, datetime-local, number, range, or colorautofocuschecked when type is checkbox or radiodirname when type is text or searchdisabledformformaction when type is submit or imageformenctype when type is submit or imageformmethod when type is submit or imageformnovalidate when type is submit or imageformtarget when type is submit or imageheight when type is imagelist when type is text, search, url, tel, email, date, month, week, time, datetime-local, number, range, or colormax when type is date, month, week, time, datetime-local, number, or rangemaxlength when type is text, search, url, tel, email, or passwordmin when type is date, month, week, time, datetime-local, number, or rangemultiple when type is email or filenamepattern when type is text, search, url, tel, email, or passwordplaceholder when type is text, search, url, tel, email, password, or numberreadonly when type is text, search, url, tel, email, password, date, month, week, time, datetime-local, or numberrequired when type is text, search, url, tel, email, password, date, month, week, time, datetime-local, number, checkbox, radio, or filesize when type is text, search, url, tel, email, or passwordsrc when type is imagestep when type is date, month, week, time, datetime-local, number, or rangetypevalue when type is not file or imagewidth when type is imageError: Attribute results not allowed on element input at this point.
From line 193, column 1; to line 193, column 163
t()'></i>↩<input type="search" name="keywords" value="" class="textCtrl" placeholder="Search..." results="0" title="Enter your search and hit enter" id="QuickSearchQuery" />↩↩</di
input:accept when type is filealt when type is imageautocomplete when type is text, search, url, tel, email, password, date, month, week, time, datetime-local, number, range, or colorautofocuschecked when type is checkbox or radiodirname when type is text or searchdisabledformformaction when type is submit or imageformenctype when type is submit or imageformmethod when type is submit or imageformnovalidate when type is submit or imageformtarget when type is submit or imageheight when type is imagelist when type is text, search, url, tel, email, date, month, week, time, datetime-local, number, range, or colormax when type is date, month, week, time, datetime-local, number, or rangemaxlength when type is text, search, url, tel, email, or passwordmin when type is date, month, week, time, datetime-local, number, or rangemultiple when type is email or filenamepattern when type is text, search, url, tel, email, or passwordplaceholder when type is text, search, url, tel, email, password, or numberreadonly when type is text, search, url, tel, email, password, date, month, week, time, datetime-local, or numberrequired when type is text, search, url, tel, email, password, date, month, week, time, datetime-local, number, checkbox, radio, or filesize when type is text, search, url, tel, email, or passwordsrc when type is imagestep when type is date, month, week, time, datetime-local, number, or rangetypevalue when type is not file or imagewidth when type is imageWarning: The date input type is not supported in all browsers. Please be sure to test, and consider using a polyfill.
From line 214, column 5; to line 214, column 83
</dt>↩<dd><input type="date" name="date" value="" class="textCtrl" id="searchBar_date" /></dd>↩
Error: Bad value Menu for attribute rel on element a: The string Menu is not a registered keyword.
From line 224, column 1; to line 224, column 99
earches">↩<a rel="Menu" class="button NoPopupGadget Tooltip" title="Useful Searches" data-tipclass="flipped"><span
Error: An img element must have an alt attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
From line 257, column 1; to line 257, column 41
ux.org/">↩<img src="styles/uix/uix/logo_small.png">↩</a>↩
Error: Bad value Menu for attribute rel on element a: The string Menu is not a registered keyword.
From line 269, column 1; to line 269, column 71
>Home</a>↩<a href="https://www.linux.org/articles/" class="SplitCtrl" rel="Menu"></a>↩<
Error: Bad value Menu for attribute rel on element a: The string Menu is not a registered keyword.
From line 286, column 1; to line 286, column 62
orums</a>↩<a href="https://www.linux.org/" class="SplitCtrl" rel="Menu"></a>↩<
Error: Bad value Menu for attribute rel on element a: The string Menu is not a registered keyword.
From line 302, column 1; to line 302, column 70
mbers</a>↩<a href="https://www.linux.org/members/" class="SplitCtrl" rel="Menu"></a>↩<
Error: Bad value Menu for attribute rel on element a: The string Menu is not a registered keyword.
From line 322, column 1; to line 322, column 102
rials</a>↩<a href="https://www.linux.org/forums/#linux-articles-and-tutorials.122" class="SplitCtrl" rel="Menu"></a>↩<
Error: Bad value Menu for attribute rel on element a: The string Menu is not a registered keyword.
From line 343, column 1; to line 343, column 68
ay:none">↩<a rel="Menu" class="navLink NoPopupGadget uix_dropdownDesktopMenu"><i cla
Error: Bad value up for attribute rel on element a: The string up is not a registered keyword.
From line 381, column 1; to line 381, column 80
adcrumb">↩<a href="https://www.linux.org/articles/" class="crumb" rel="up" itemprop="url"><span
Error: Bad value up for attribute rel on element a: The string up is not a registered keyword.
From line 386, column 1; to line 386, column 71
adcrumb">↩<a href="https://www.linux.org/" class="crumb" rel="up" itemprop="url"><span
Error: The align attribute on the div element is obsolete. Use CSS instead.
From line 1338, column 1; to line 1338, column 20
Wrapper">↩<div align="center">↩<scri
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 1339, column 1; to line 1339, column 110
"center">↩<script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js" type="6561947352a82ff03f2ba92d-"></scri
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 1342, column 1; to line 1342, column 41
e"></ins>↩<script type="6561947352a82ff03f2ba92d-">↩(adsb
Error: Duplicate attribute class.
At line 1361, column 25
s="count" class="Tooltip" titl
Error: Duplicate attribute class.
At line 1370, column 25
s="count" class="Tooltip" titl
Warning: Article lacks heading. Consider using h2-h6 elements to add identifying headings to all articles.
From line 1401, column 1; to line 1401, column 9
>↩</span>↩<article><block
Warning: Article lacks heading. Consider using h2-h6 elements to add identifying headings to all articles.
From line 1420, column 1; to line 1420, column 9
>↩</span>↩<article><block
Warning: Article lacks heading. Consider using h2-h6 elements to add identifying headings to all articles.
From line 1440, column 1; to line 1440, column 9
>↩</span>↩<article><block
Warning: Article lacks heading. Consider using h2-h6 elements to add identifying headings to all articles.
From line 1459, column 1; to line 1459, column 9
>↩</span>↩<article><block
Warning: Article lacks heading. Consider using h2-h6 elements to add identifying headings to all articles.
From line 1479, column 1; to line 1479, column 9
>↩</span>↩<article><block
Error: The align attribute on the div element is obsolete. Use CSS instead.
From line 1542, column 1; to line 1542, column 20
Wrapper">↩<div align="center">↩<scri
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 1543, column 1; to line 1543, column 110
"center">↩<script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js" type="6561947352a82ff03f2ba92d-"></scri
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 1546, column 1; to line 1546, column 41
e"></ins>↩<script type="6561947352a82ff03f2ba92d-">↩(adsb
Error: Bad value alternate} for attribute rel on element a: The string alternate} is not a registered keyword.
From line 1664, column 48; to line 1664, column 109
ink--rss"><a href="forums/-/index.rss" rel="alternate}" target="_blank"><i cla
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 1703, column 1; to line 1703, column 41
>↩</div>↩↩<script type="6561947352a82ff03f2ba92d-">↩ va
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 1706, column 12; to line 1706, column 123
</script><script async src="https://www.googletagmanager.com/gtag/js?id=UA-3314314-270" type="6561947352a82ff03f2ba92d-"></scri
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 1706, column 133; to line 1706, column 173
></script><script type="6561947352a82ff03f2ba92d-">↩ win
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 1716, column 11; to line 1716, column 88
</script><script src="js/jquery/jquery-1.11.0.min.js" type="6561947352a82ff03f2ba92d-"></scri
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 1716, column 98; to line 1716, column 178
></script><script src="js/xenforo/xenforo.js?_v=0c46d6f9" type="6561947352a82ff03f2ba92d-"></scri
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 1716, column 188; to line 1716, column 290
></script><script src="js/brivium/MailchimpIntegrate/newsletter.js?_v=0c46d6f9" type="6561947352a82ff03f2ba92d-"></scri
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 1716, column 300; to line 1716, column 383
></script><script src="js/xenforo/discussion.js?_v=0c46d6f9" type="6561947352a82ff03f2ba92d-"></scri
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 1716, column 393; to line 1716, column 505
></script><script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js" type="6561947352a82ff03f2ba92d-"></scri
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 1716, column 515; to line 1716, column 622
></script><script src="//cdnjs.cloudflare.com/ajax/libs/respond.js/1.4.2/respond.js" type="6561947352a82ff03f2ba92d-"></scri
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 1716, column 632; to line 1716, column 748
></script><script src="//cdnjs.cloudflare.com/ajax/libs/selectivizr/1.0.2/selectivizr-min.js" type="6561947352a82ff03f2ba92d-"></scri
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 1716, column 758; to line 1716, column 798
></script><script type="6561947352a82ff03f2ba92d-">↩ uix
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 1946, column 10; to line 1946, column 118
↩</script><script src="js/audentio/uix_style/functions.min.js?_v=0c46d6f9_1.5.13.0_1" type="6561947352a82ff03f2ba92d-"></scri
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 1946, column 128; to line 1946, column 168
></script><script type="6561947352a82ff03f2ba92d-">↩ uix.
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 2001, column 10; to line 2001, column 50
↩</script><script type="6561947352a82ff03f2ba92d-">↩ try
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 2040, column 10; to line 2040, column 50
↩</script><script type="6561947352a82ff03f2ba92d-">(funct
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 2046, column 59; to line 2046, column 99
;</script><script type="6561947352a82ff03f2ba92d-">↩↩↩jQu
Error: Bad value 6561947352a82ff03f2ba92d- for attribute type on element script: Subtype missing.
From line 2128, column 10; to line 2128, column 50
↩</script><script type="6561947352a82ff03f2ba92d-">↩↩</sc
There were errors.
Used the schema for HTML with SVG 1.1, MathML 3.0, RDFa 1.1, and ITS 2.0 support.
Used the HTML parser. Externally specified character encoding was UTF-8.
Total execution time 656 milliseconds.
About this checker • Report an issue • Version: 18.6.15