Netimperative.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:fb” not allowed here.
Attribute “xmlns:addthis” not allowed here.
Element “title” not allowed as child of element “head” in this context. (Suppressing further errors from this subtree.)
Element “script” must not have attribute “charset” unless attribute “src” is also specified.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
No space between attributes.
Warnings:
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
Attribute with the local name “xmlns:addthis” is not serializable as XML 1.0.
The “banner” role is unnecessary for element “header”.
Empty heading.
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
The “complementary” role is unnecessary for element “aside”.
Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “contentinfo” role is unnecessary for element “footer”.
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