Subbly.co W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad start tag in “img” in “head”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “noscript”.
Element “script” must not have attribute “async” unless attribute “src” is also specified.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
No space between attributes.
Attribute “xmlns:a” not allowed here.
The element “footer” must not appear as a descendant of the “footer” element.
Warnings:
Attribute with the local name “xmlns:a” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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