Nationalobserver.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “x-dns-prefetch-control” for attribute “http-equiv” on element “meta”.
Stray end tag “a”.
Duplicate attribute “role”.
Element “ul” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Warnings:
The “link” role is unnecessary for element “a”.
The “banner” role is unnecessary for element “header”.
The “main” role is unnecessary for element “main”.
The “article” role is unnecessary for element “article”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “contentinfo” role is unnecessary for element “footer”.
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