This tool is an ongoing experiment in better HTML checking, and its behavior remains subject to change
Warning: Consider avoiding viewport values that prevent users from resizing documents.
From line 9, column 9; to line 9, column 116
>↩ <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"/>↩
Error: Bad value charset=utf-8 for attribute content on element meta: The legacy encoding declaration did not start with text/html;.
From line 10, column 9; to line 10, column 66
>↩ <meta http-equiv="content-type" content="charset=utf-8" />↩
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 179, column 66; to line 179, column 124
way.com/'><img class='preserve' src='/images/sponsors/accelaway.png'></a>↩<
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 180, column 41; to line 180, column 94
erospace'><img class='preserve' src='/images/sponsors/ball.png'></a>↩<
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 181, column 42; to line 181, column 106
tin.com/'><img class='preserve' src='/images/sponsors/lockheed-martin.png'></a>↩<
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 182, column 33; to line 182, column 96
mcu.org/'><img class='preserve' src='/images/sponsors/premiermembers.png'></a>↩<
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 183, column 34; to line 183, column 92
eft.com/'><img class='preserve' src='/images/sponsors/quickleft.png'></a>↩
Error: End tag a did not match the name of the current open element (svg).
From line 195, column 592; to line 195, column 595
9,0.02z"/></a></li>↩
Error: End tag a violates nesting rules.
From line 195, column 592; to line 195, column 595
9,0.02z"/></a></li>↩
Error: End tag a did not match the name of the current open element (svg).
From line 196, column 534; to line 196, column 537
1,18.9z"/></a></li>↩
Error: End tag a violates nesting rules.
From line 196, column 534; to line 196, column 537
1,18.9z"/></a></li>↩
Error: End tag a did not match the name of the current open element (svg).
From line 197, column 1649; to line 197, column 1652
45.223z"/></a></li>↩
Error: End tag a violates nesting rules.
From line 197, column 1649; to line 197, column 1652
45.223z"/></a></li>↩
Error: End tag a did not match the name of the current open element (svg).
From line 198, column 334; to line 198, column 337
z"></path></a></li>↩
Error: End tag a violates nesting rules.
From line 198, column 334; to line 198, column 337
z"></path></a></li>↩
Error: End tag a did not match the name of the current open element (svg).
From line 199, column 892; to line 199, column 895
29.533z"/></a></li>↩
Error: End tag a violates nesting rules.
From line 199, column 892; to line 199, column 895
29.533z"/></a></li>↩
Error: End tag a did not match the name of the current open element (svg).
From line 200, column 1307; to line 200, column 1310
47.904z"/></a></li>↩
Error: End tag a violates nesting rules.
From line 200, column 1307; to line 200, column 1310
47.904z"/></a></li>↩
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.
Total execution time 8341 milliseconds.
About this checker • Report an issue • Version: 16.12.30