Errors:
Attribute “xmlns:og” not allowed here.
Attribute “xmlns:article” not allowed here.
Attribute “xmlns:book” not allowed here.
Attribute “xmlns:profile” not allowed here.
Attribute “xmlns:video” not allowed here.
Attribute “xmlns:product” not allowed here.
Attribute “xmlns:content” not allowed here.
Attribute “xmlns:dc” not allowed here.
Attribute “xmlns:foaf” not allowed here.
Attribute “xmlns:rdfs” not allowed here.
Attribute “xmlns:sioc” not allowed here.
Attribute “xmlns:sioct” not allowed here.
Attribute “xmlns:skos” not allowed here.
Attribute “xmlns:xsd” not allowed here.
The “version” attribute on the “html” element is obsolete. You can safely omit it.
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Bad value “http://www.threatstop.com/about-us#management#tab-management” for attribute “href” on element “a”: Illegal character in fragment: “#” is not allowed.
Bad value “” for attribute “alt” on element “input”: Must not be empty.
Element “img” is missing required attribute “src”.
End tag had attributes.
Element “blockquote” not allowed as child of element “figure” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “script” must not have attribute “async” unless attribute “src” is also specified.
Warnings:
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
Attribute with the local name “xmlns:article” is not serializable as XML 1.0.
Attribute with the local name “xmlns:book” is not serializable as XML 1.0.
Attribute with the local name “xmlns:profile” is not serializable as XML 1.0.
Attribute with the local name “xmlns:video” is not serializable as XML 1.0.
Attribute with the local name “xmlns:product” is not serializable as XML 1.0.
Attribute with the local name “xmlns:content” is not serializable as XML 1.0.
Attribute with the local name “xmlns:dc” is not serializable as XML 1.0.
Attribute with the local name “xmlns:foaf” is not serializable as XML 1.0.
Attribute with the local name “xmlns:rdfs” is not serializable as XML 1.0.
Attribute with the local name “xmlns:sioc” is not serializable as XML 1.0.
Attribute with the local name “xmlns:sioct” is not serializable as XML 1.0.
Attribute with the local name “xmlns:skos” is not serializable as XML 1.0.
Attribute with the local name “xmlns:xsd” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
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