Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
The “language” attribute on the “script” element is obsolete. Use the “type” attribute instead.
“=” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
Bad value “'stylesheet'” for attribute “rel” on element “link”: The string “'stylesheet'” is not a registered keyword.
A “link” element must not appear as a descendant of a “body” element unless the “link” element has an “itemprop” attribute or has a “rel” attribute whose value contains “dns-prefetch”, “pingback”, “preconnect”, “prefetch”, “preload”, “prerender”, or “stylesheet”.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Malformed byte sequence: “f3”.
Malformed byte sequence: “e1”.
Malformed byte sequence: “f1”.
End tag “div” seen, but there were open elements.
Unclosed element “footer”.
Stray end tag “footer”.
Stray end tag “div”.
Element “script” must not have attribute “async” unless attribute “src” is also specified.
Bad value “” for attribute “media” on element “link”: Media query ended prematurely.
Warnings:
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The “navigation” role is unnecessary for element “nav”.
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