Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Duplicate ID “style_default”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “clock_13739”.
Duplicate ID “clock_13884”.
Duplicate ID “clock_13662”.
Duplicate ID “clock_13979”.
Duplicate ID “clock_13970”.
Duplicate ID “clock_13579”.
Duplicate ID “clock_13975”.
Duplicate ID “clock_13676”.
Duplicate ID “clock_13567”.
Duplicate ID “clock_13790”.
Duplicate ID “clock_13590”.
Duplicate ID “clock_13945”.
Duplicate ID “clock_13606”.
Duplicate ID “clock_13643”.
Duplicate ID “clock_13740”.
Duplicate ID “clock_13973”.
Duplicate ID “clock_13827”.
Duplicate ID “clock_13622”.
Duplicate ID “clock_13816”.
Duplicate ID “clock_13969”.
Duplicate ID “clock_13773”.
Duplicate ID “clock_13789”.
Duplicate ID “clock_13572”.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The first occurrence of ID “style_default” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “main” role is unnecessary for element “main”.
The first occurrence of ID “clock_13739” was here.
The first occurrence of ID “clock_13884” was here.
The first occurrence of ID “clock_13662” was here.
The first occurrence of ID “clock_13979” was here.
The first occurrence of ID “clock_13970” was here.
The first occurrence of ID “clock_13579” was here.
The first occurrence of ID “clock_13975” was here.
The first occurrence of ID “clock_13676” was here.
The first occurrence of ID “clock_13567” was here.
The first occurrence of ID “clock_13790” was here.
The first occurrence of ID “clock_13590” was here.
The first occurrence of ID “clock_13945” was here.
The first occurrence of ID “clock_13606” was here.
The first occurrence of ID “clock_13643” was here.
The first occurrence of ID “clock_13740” was here.
The first occurrence of ID “clock_13973” was here.
The first occurrence of ID “clock_13827” was here.
The first occurrence of ID “clock_13622” was here.
The first occurrence of ID “clock_13816” was here.
The first occurrence of ID “clock_13969” was here.
The first occurrence of ID “clock_13773” was here.
The first occurrence of ID “clock_13789” was here.
The first occurrence of ID “clock_13572” was here.
This document appears to be written in Dutch. Consider adding “lang="nl"” (or variant) to the “html” start tag.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
Netherlands NL