Universalyums.com 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.
Duplicate ID “menu-primary-collapse”.
End tag “nav” seen, but there were open elements.
Unclosed element “div”.
The element “button” must not appear as a descendant of the “a” element.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
End tag “div” seen, but there were open elements.
Unclosed element “form”.
Stray end tag “form”.
Unclosed element “section”.
Stray end tag “section”.
Unclosed element “footer”.
Stray end tag “footer”.
Stray end tag “div”.
The “aria-controls” attribute must point to an element in the same document.
Warnings:
The first occurrence of ID “menu-primary-collapse” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
United States US