Onecentatatime.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.
Bad value “”Author”” for attribute “rel” on element “link”: The string “”Author”” 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.
Bad element name “fb:like-box”: Code point “U+003A” is not allowed
The “center” element is obsolete. Use CSS instead.
No space between attributes.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “nofollow""” not allowed on element “a” at this point.
End tag “div” seen, but there were open elements.
Unclosed element “footer”.
Stray end tag “footer”.
Stray end tag “div”.
Duplicate ID “fb-root”.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “complementary” role is unnecessary for element “aside”.
Element name “fb:like-box” cannot be represented as XML 1.0.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
Attribute “nofollow""” is not serializable as XML 1.0.
The first occurrence of ID “fb-root” was here.
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