Busbank.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Stray start tag “html”.
Internal encoding declaration “us-ascii” disagrees with the actual encoding of the document (“utf-8”).
Bad value “text/html; charset=us-ascii” for attribute “content” on element “meta”: “us-ascii” is not a preferred encoding name. The preferred label for this encoding is “windows-1252”.
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Element “gcse:searchbox-only” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Bad element name “gcse:searchbox-only”: Code point “U+003A” is not allowed
End tag “ul” seen, but there were open elements.
Unclosed element “gcse:searchbox-only”.
The “center” element is obsolete. Use CSS instead.
Bad value “ISO-8859-1” for attribute “charset” on element “script”: “iso-8859-1” is not a preferred encoding name. The preferred label for this encoding is “windows-1252”.
Bad value “site-footer” for attribute “role” on element “footer”.
Element “h3” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “navigation” role is unnecessary for element “nav”.
Element name “gcse:searchbox-only” cannot be represented as XML 1.0.
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