Edfenr.com 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.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “primary-menu”.
Bad value “popin” for attribute “rel” on element “a”: The string “popin” is not a registered keyword.
End tag “br”.
Element “meta” is missing one or more of the following attributes: “content”, “itemprop”, “property”.
Warnings:
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “primary-menu” was here.
The “main” role is unnecessary for element “main”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
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