Corero.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “no-data-toggle” not allowed on element “a” at this point.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
The “font” element is obsolete. Use CSS instead.
Bad value “/img/Resource Thumbnails/Telesystems Web.png” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “/img/Resource Thumbnails/OnDemand_v1.png” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “/img/Events/uknof_logo Web.jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “/img/Events/NANOG (3).jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Warnings:
The “language” attribute on the “script” element is obsolete. You can safely omit it.
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