Errors:
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root 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.
The “center” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “p” not allowed as child of element “h1” in this context. (Suppressing further errors from this subtree.)
The “font” element is obsolete. Use CSS instead.
The “width” attribute on the “td” element is obsolete. Use CSS instead.
The “valign” attribute on the “td” element is obsolete. Use CSS instead.
No “p” element in scope but a “p” end tag seen.
Stray end tag “font”.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Stray end tag “a”.
End tag “li” seen, but there were open elements.
Unclosed element “b”.
No “b” element in scope but a “b” end tag seen.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
End tag “div” seen, but there were open elements.
Unclosed element “ul”.
Warnings:
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Attribute “target"_self"” is not serializable as XML 1.0.
This document appears to be written in German. Consider adding “lang="de"” (or variant) to the “html” start tag.
Germany DE