Ecovadis.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “en-UK” for attribute “lang” on element “html”: Bad region subtag.
Bad value “Expires” for attribute “http-equiv” on element “meta”.
Bad value “Pragma” for attribute “http-equiv” on element “meta”.
Bad value “en-uk” for attribute “hreflang” on element “link”: Bad region subtag.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Element “p” not allowed as child of element “h2” in this context. (Suppressing further errors from this subtree.)
No space between attributes.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “sustain"” not allowed on element “img” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
End tag “br”.
End tag “h1” seen, but there were open elements.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Stray start tag “script”.
Warnings:
The “navigation” role is unnecessary for element “nav”.
Empty heading.
Attribute “sustain"” is not serializable as XML 1.0.
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