Rogator.de W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
No space between attributes.
Start tag “a” seen but an element of the same type was already open.
End tag “a” violates nesting rules.
Stray end tag “span”.
Stray end tag “a”.
No “p” element in scope but a “p” end tag seen.
When the “srcset” attribute has any image candidate string with a width descriptor, the “sizes” attribute must also be present.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “main” role is unnecessary for element “main”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
This document appears to be written in German. Consider adding “lang="de"” (or variant) to the “html” start tag.
Germany DE