Vidadeturista.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 “” for attribute “href” on element “link”: Must be non-empty.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Bad value “designer” for attribute “rel” on element “a”: The string “designer” is not a registered keyword.
Element “script” must not have attribute “async” unless attribute “src” is also specified.
No space between attributes.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “{” instead.
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 “navigation” role is unnecessary for element “nav”.
Empty heading.
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