Zoneperfect.com 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”.
A “link” element must not appear as a descendant of a “body” element unless the “link” element has an “itemprop” attribute or has a “rel” attribute whose value contains “dns-prefetch”, “pingback”, “preconnect”, “prefetch”, “preload”, “prerender”, or “stylesheet”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
Attribute “addthis:userid” not allowed on element “a” at this point.
Bad value for attribute “src” on element “iframe”: Illegal character in query: “{” is not allowed.
Warnings:
Attribute “addthis:userid” is not serializable as XML 1.0.
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