Errors:
Obsolete doctype. Expected “<!DOCTYPE html>”.
Attribute “xmlns:ns” not allowed here.
When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.
The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Bad value “imagetoolbar” for attribute “http-equiv” on element “meta”.
Bad value “handheld” for attribute “media” on element “link”: Deprecated media type “handheld”. For guidance, see the Media Types section in the current Media Queries specification.
Attribute “ns:sitestat” not allowed on element “a” at this point.
Bad value “filter-all” for attribute “rel” on element “a”: The string “filter-all” is not a registered keyword.
Bad value “filter-cat1” for attribute “rel” on element “a”: The string “filter-cat1” is not a registered keyword.
Bad value “filter-cat2” for attribute “rel” on element “a”: The string “filter-cat2” is not a registered keyword.
Bad value “filter-cat4” for attribute “rel” on element “a”: The string “filter-cat4” is not a registered keyword.
Bad value “filter-cat5” for attribute “rel” on element “a”: The string “filter-cat5” is not a registered keyword.
Bad value “filter-cat3” for attribute “rel” on element “a”: The string “filter-cat3” is not a registered keyword.
Attribute “ns:background” not allowed on element “div” at this point.
Attribute “ns:sitestat” not allowed on element “form” at this point.
Attribute “ns:sitestat” not allowed on element “input” at this point.
No space between attributes.
Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.
Attribute “"” not allowed on element “a” at this point.
Bad value “form-submit” for attribute “rel” on element “a”: The string “form-submit” is not a registered keyword.
Duplicate ID “navigation-service”.
Element “value” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Bad value “drawer” for attribute “rel” on element “a”: The string “drawer” is not a registered keyword.
Duplicate ID “option-standard”.
Duplicate ID “option-extensive”.
Duplicate ID “faq-1”.
Duplicate ID “faq-2”.
Warnings:
Attribute with the local name “xmlns:ns” is not serializable as XML 1.0.
Attribute “ns:sitestat” is not serializable as XML 1.0.
Attribute “ns:background” is not serializable as XML 1.0.
Attribute “"” is not serializable as XML 1.0.
The first occurrence of ID “navigation-service” was here.
Empty heading.
The first occurrence of ID “option-standard” was here.
The first occurrence of ID “option-extensive” was here.
The first occurrence of ID “faq-1” was here.
The first occurrence of ID “faq-2” was here.
This document appears to be written in Dutch. Consider adding “lang="nl"” (or variant) to the “html” start tag.
Netherlands NL