Kettnerexchange.com W3C HTML Markup Validation
HTML markup errors and warnings
(Rescan now...)
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “type” attribute for the “style” element is not needed and should be omitted.
The “banner” role is unnecessary for element “header”.
The “main” role is unnecessary for element “main”.
The “article” role is unnecessary for element “article”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The first occurrence of ID “logo” was here.
The “contentinfo” role is unnecessary for element “footer”.
Errors:
End tag “div” seen, but there were open elements.
Unclosed element “article”.
Unclosed element “main”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “logo”.
No “p” element in scope but a “p” end tag seen.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Stray end tag “article”.
Stray end tag “main”.
Stray end tag “div”.
Element “p” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
United States US