Inceptia.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “charset” attribute on a “meta” element found after the first 1024 bytes.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
End tag “nav” seen, but there were open elements.
Unclosed element “div”.
Duplicate ID “hdr-main-text”.
Malformed byte sequence: “a9”.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
The first occurrence of ID “hdr-main-text” was here.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “contentinfo” role is unnecessary for element “footer”.
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