Buedemusica.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:fb” not allowed here.
Element “script” must not have attribute “async” unless attribute “src” is also specified.
Element “script” must not have attribute “defer” unless attribute “src” is also specified.
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 “//fonts.googleapis.com/css?family=Roboto+Slab:700|Roboto:700|Roboto:normal|Roboto+Slab:normal&subset=latin” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.
Attribute “_lpchecked” not allowed on element “form” at this point.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “logo”.
Warnings:
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
The “banner” role is unnecessary for element “header”.
The value of attribute “title” on element “a” from namespace “http://www.w3.org/1999/xhtml” is not in Unicode Normalization Form C.
The value of attribute “alt” on element “img” from namespace “http://www.w3.org/1999/xhtml” is not in Unicode Normalization Form C.
Text run is not in Unicode Normalization Form C.
The “navigation” role is unnecessary for element “nav”.
The “contentinfo” role is unnecessary for element “footer”.
The first occurrence of ID “logo” was here.
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