Sadibey.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.
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.
Attribute “addthis:url” not allowed on element “div” at this point.
Attribute “addthis:title” not allowed on element “div” at this point.
Bad value “wp-video-lightbox” for attribute “rel” on element “a”: The string “wp-video-lightbox” is not a registered keyword.
Element “tbody” not allowed as child of element “table” in this context. (Suppressing further errors from this subtree.)
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”.
The “navigation” role is unnecessary for element “nav”.
Attribute “addthis:url” is not serializable as XML 1.0.
Attribute “addthis:title” is not serializable as XML 1.0.
The “contentinfo” role is unnecessary for element “footer”.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
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