Lemire.me W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “71fe90441ec6b7368493ee5e-” for attribute “type” on element “script”: Subtype missing.
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”.
The “tt” element is obsolete. Use CSS instead.
The “itemprop” attribute was specified, but the element is not a property of any item.
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 “contentinfo” role is unnecessary for element “footer”.
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