Errors:
Obsolete doctype. Expected “<!DOCTYPE html>”.
Bad value “schema.DC” for attribute “rel” on element “link”: The string “schema.DC” is not a registered keyword.
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 “Content-Script-Type” for attribute “http-equiv” on element “meta”.
Bad value “Content-Style-Type” for attribute “http-equiv” on element “meta”.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Element “ul” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “pa_header”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “ph_zoek”.
Duplicate ID “ra_searchfield”.
Stray end tag “input”.
Duplicate ID “synoniem1”.
Duplicate ID “synoniem2”.
Duplicate ID “zoeken1”.
Attribute “rel” not allowed on element “li” at this point.
Warnings:
The first occurrence of ID “pa_header” was here.
The first occurrence of ID “ph_zoek” was here.
The first occurrence of ID “ra_searchfield” was here.
The first occurrence of ID “synoniem1” was here.
The first occurrence of ID “synoniem2” was here.
The first occurrence of ID “zoeken1” was here.
Netherlands NL