Upviral.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.
Bad value “https://www.facebook.com/tr?id=323756101117134&ev=PageView&noscript=1&cd[domain]=upviral.com” for attribute “src” on element “img”: Illegal character in query: “[” is not allowed.
Bad value “https://www.facebook.com/tr?id=323756101117134&ev=PostType - UpViral&noscript=1&cd[post_type]=page&cd[content_name]=HomePage&cd[post_id]=5005&cd[domain]=upviral.com” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Warnings:
The “banner” role is unnecessary for element “header”.
Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)
The “navigation” role is unnecessary for element “nav”.
The “contentinfo” role is unnecessary for element “footer”.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
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