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”.
Bad value “X-XSS-Protection” for attribute “http-equiv” on element “meta”.
Bad value “nl_nl” for attribute “hreflang” on element “link”: The language subtag “nl_nl” is not a valid language subtag.
Element “link” is missing one or more of the following attributes: “href”, “resource”.
CSS: “font-smoothing”: Property “font-smoothing” doesn't exist.
CSS: Parse Error.
CSS: “color”: “none” is not a “color” value.
Element “konami” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
The “align” attribute on the “img” element is obsolete. Use CSS instead.
The “width” attribute on the “th” element is obsolete. Use CSS instead.
Row 7 of a row group established by a “tbody” element has no cells beginning on it.
A table row was 0 columns wide, which is less than the column count established using column markup (2).
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
Bad value “100%” for attribute “height” on element “iframe”: Expected a digit but saw “%” instead.
Attribute “webkitallowfullscreen” not allowed on element “iframe” at this point.
Attribute “mozallowfullscreen” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Text not allowed in element “iframe” in this context.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “itemtype” attribute must not be specified on elements that do not have an “itemscope” attribute specified.
Attribute “sfref” not allowed on element “a” at this point.
Element “a” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
The “aria-labelledby” attribute must point to an element in the same document.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “type” attribute for the “style” element is not needed and should be omitted.
Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)
The “navigation” role is unnecessary for element “nav”.
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.
Netherlands NL