Seiha.org 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The “profile” attribute on the “head” element is obsolete.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 “archives” for attribute “rel” on element “link”: The string “archives” is not a registered keyword.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Start tag “head” seen but an element of the same type was already open.
Element “align="center"” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Stray end tag “ul”.
The “align” attribute on the “p” element is obsolete. Use CSS instead.
End tag for “body” seen, but there were unclosed elements.
Unclosed element “align="center"”.
Warnings:
The “language” attribute on the “script” element is obsolete. You can safely omit it.
Element name “align="center"” cannot be represented as XML 1.0.
Empty heading.
United States US