Codetools.ir W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Stray doctype.
Duplicate attribute “prefix”.
Stray start tag “html”.
A “charset” attribute on a “meta” element found after the first 1024 bytes.
Element “title” not allowed as child of element “head” in this context. (Suppressing further errors from this subtree.)
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
The “sizes” attribute may be specified only if the “srcset” attribute is also present.
No space between attributes.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “bookmark"” not allowed on element “a” at this point.
Duplicate ID “s”.
Duplicate ID “posts-list-widget-3”.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Empty heading.
Attribute “bookmark"” is not serializable as XML 1.0.
The first occurrence of ID “s” was here.
The first occurrence of ID “posts-list-widget-3” was here.
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