Lsainsider.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:og” not allowed here.
Attribute “xmlns:fb” not allowed here.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “mobile-tab-recent” for attribute “rel” on element “a”: The string “mobile-tab-recent” is not a registered keyword.
Bad value “mobile-tab-sponsored” for attribute “rel” on element “a”: The string “mobile-tab-sponsored” is not a registered keyword.
Bad value “mobile-tab-popular” for attribute “rel” on element “a”: The string “mobile-tab-popular” is not a registered keyword.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
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