Incomopedia.com 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.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “social-facebook”.
Duplicate ID “social-gplus”.
Duplicate ID “social-linkedin”.
Duplicate ID “social-rss”.
Duplicate ID “social-twitter”.
The “center” element is obsolete. Use CSS instead.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)
The “complementary” role is unnecessary for element “aside”.
The first occurrence of ID “social-facebook” was here.
The first occurrence of ID “social-gplus” was here.
The first occurrence of ID “social-linkedin” was here.
The first occurrence of ID “social-rss” was here.
The first occurrence of ID “social-twitter” was here.
Empty heading.
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