Errors:
Bad value “ico” for attribute “rel” on element “link”: The string “ico” 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.
Bad value “article” for attribute “itemtype” on element “meta”: The string “article” is not an absolute URL.
Element “meta” is missing one or more of the following attributes: “content”, “itemprop”, “name”.
End tag “li” seen, but there were open elements.
Unclosed element “figure”.
The “frameborder” attribute on the “iframe” element is obsolete.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.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
The “navigation” role is unnecessary for element “nav”.
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.
The value of attribute “src” on element “img” from namespace “http://www.w3.org/1999/xhtml” is not in Unicode Normalization Form C.
The value of attribute “srcset” on element “img” from namespace “http://www.w3.org/1999/xhtml” is not in Unicode Normalization Form C.
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