Reactiongifs.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Bad value for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.
Element “script” must not have attribute “async” unless attribute “src” is also specified.
Duplicate attribute “pw:image”.
Attribute “pw:image” not allowed on element “div” at this point.
Attribute “pw:url” not allowed on element “div” at this point.
Attribute “pw:title” not allowed on element “div” at this point.
Warnings:
Attribute “pw:image” is not serializable as XML 1.0.
Attribute “pw:url” is not serializable as XML 1.0.
Attribute “pw:title” is not serializable as XML 1.0.
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