Alamaula.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “http://www.w3.org/1999/html” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).
Bad value “es_AR” for attribute “lang” on element “html”: The language subtag “es_ar” is not a valid language subtag.
Bad value “x-dns-prefetch-control” for attribute “http-equiv” on element “meta”.
Bad value “” for attribute “href” on element “link”: Must be non-empty.
Element “script” must not have attribute “async” unless attribute “src” is also specified.
Element “style” not allowed as child of element “noscript” in this context. (Suppressing further errors from this subtree.)
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Cannot recover after last error. Any further errors will be ignored.
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
Consider avoiding viewport values that prevent users from resizing documents.
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