Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Duplicate attribute “type”.
Bad value “noindex” for attribute “rel” on element “a”: The string “noindex” is not a registered keyword.
End tag “nav” seen, but there were open elements.
Unclosed element “div”.
The element “header” must not appear as a descendant of the “header” element.
Duplicate ID “searchform”.
Duplicate ID “search-valid”.
Duplicate ID “container”.
No space between attributes.
Attribute “?” not allowed on element “a” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
No “p” element in scope but a “p” end tag seen.
End tag “a” violates nesting rules.
Cannot recover after last error. Any further errors will be ignored.
Warnings:
The “navigation” role is unnecessary for element “nav”.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The first occurrence of ID “searchform” was here.
The first occurrence of ID “search-valid” was here.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The first occurrence of ID “container” was here.
Attribute “?” is not serializable as XML 1.0.
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