Joedog.org W3C HTML Markup Validation
HTML markup errors and warnings
(Rescan now...)
Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “at_zurlpreview”.
Duplicate ID “colpadding”.
The “center” element is obsolete. Use CSS instead.
No “p” element in scope but a “p” end tag seen.
Warnings:
Empty heading.
The first occurrence of ID “at_zurlpreview” was here.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “colpadding” was here.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
United States US