Qetic.jp 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.
Bad value “//schema.org/SiteNavigationElement” for attribute “itemtype” on element “nav”: The string “//schema.org/SiteNavigationElement” is not an absolute URL.
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
Bad value “auto” for attribute “height” on element “img”: Expected a digit but saw “a” instead.
Element “img” is missing required attribute “src”.
Forbidden code point U+0010.
End tag “a” violates nesting rules.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The value of attribute “title” on element “img” 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 “list” role is unnecessary for element “ul”.
The “contentinfo” role is unnecessary for element “footer”.
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