Delhir.info W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
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 “foobox[60764]” for attribute “rel” on element “a”: The string “foobox[60764]” is not a registered keyword.
Element “img” is missing required attribute “src”.
Bad element name “fb:like-box”: Code point “U+003A” is not allowed
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “center” element is obsolete. Use CSS instead.
Stray start tag “script”.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
Element name “fb:like-box” cannot be represented as XML 1.0.
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