Cohl.fr W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Attribute “xmlns:v” not allowed here.
Attribute “pubdate” not allowed on element “time” at this point.
Text not allowed in element “iframe” in this context.
Warnings:
The “navigation” role is unnecessary for element “nav”.
Attribute with the local name “xmlns:v” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “main” role is unnecessary for element “main”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “contentinfo” role is unnecessary for element “footer”.
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