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 “to-here hidden” for attribute “name” on element “a”: An ID must not contain whitespace.
Attribute “hidefocus” not allowed on element “a” at this point.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
The element “header” must not appear as a descendant of the “header” element.
The element “footer” must not appear as a descendant of the “header” element.
Attribute “alt” not allowed on element “a” at this point.
Bad value “” for attribute “name” on element “input”: Must not be empty.
Element “input” with attribute “type” whose value is “button” must have non-empty attribute “value”.
Element “p” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Bad value “http://www.ingegneri.info/ recupera-password/ ” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.
No “p” element in scope but a “p” end tag seen.
Duplicate ID “div-gpt-ad-1436524398112-0”.
Attribute “target” not allowed on element “i” at this point.
Duplicate ID “tknbr_ingegneri”.
Duplicate ID “tknbr_architetto”.
Duplicate ID “tknbr_geometra”.
Duplicate ID “tknbr_edilone”.
Duplicate ID “tknbr_periti”.
Duplicate ID “tknbr_geologi”.
Duplicate ID “tknbr_agrinews”.
Duplicate ID “tknbr_chimici”.
Duplicate ID “tknbr_teknosearch”.
Duplicate ID “tknbr_wikitecnica”.
Duplicate ID “tknbr_tknring”.
Warnings:
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “div-gpt-ad-1436524398112-0” was here.
The “contentinfo” role is unnecessary for element “footer”.
The first occurrence of ID “tknbr_ingegneri” was here.
The first occurrence of ID “tknbr_architetto” was here.
The first occurrence of ID “tknbr_geometra” was here.
The first occurrence of ID “tknbr_edilone” was here.
The first occurrence of ID “tknbr_periti” was here.
The first occurrence of ID “tknbr_geologi” was here.
The first occurrence of ID “tknbr_agrinews” was here.
The first occurrence of ID “tknbr_chimici” was here.
The first occurrence of ID “tknbr_teknosearch” was here.
The first occurrence of ID “tknbr_wikitecnica” was here.
The first occurrence of ID “tknbr_tknring” was here.
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