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The “profile” attribute on the “head” element is obsolete.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.
Element “meta” is missing one or more of the following attributes: “charset”, “content”, “http-equiv”, “itemprop”, “name”, “property”.
Attribute “pagespeed_no_defer” not allowed on element “script” at this point.
The “center” element is obsolete. Use CSS instead.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “g” instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “a”.
Start tag “a” seen but an element of the same type was already open.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “height"60"” not allowed on element “img” at this point.
End tag “center” seen, but there were open elements.
Unclosed element “div”.
No “p” element in scope but a “p” end tag seen.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
Attribute “height"60"” is not serializable as XML 1.0.
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