Errors:
Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.
The “center” element is obsolete. Use CSS instead.
Forbidden code point U+0002.
The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.
The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.
The “width” attribute on the “table” element is obsolete. Use CSS instead.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
The “align” attribute on the “td” element is obsolete. Use CSS instead.
The “hspace” attribute on the “img” element is obsolete. Use CSS instead.
The “vspace” attribute on the “img” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “width” attribute on the “td” element is obsolete. Use CSS instead.
The “valign” attribute on the “td” element is obsolete. Use CSS instead.
End tag “td” seen, but there were open elements.
Unclosed element “b”.
Stray end tag “td”.
“td” start tag in table body.
The “font” element is obsolete. Use CSS instead.
End tag “a” violates nesting rules.
Element “center” not allowed as child of element “font” in this context. (Suppressing further errors from this subtree.)
End tag “font” violates nesting rules.
End tag “b” violates nesting rules.
Element “table” not allowed as child of element “font” in this context. (Suppressing further errors from this subtree.)
The “align” attribute on the “tr” element is obsolete. Use CSS instead.
Unclosed element “form”.
Unclosed element “center”.
Unclosed element “font”.
Stray end tag “form”.
The “clear” attribute on the “br” element is obsolete. Use CSS instead.
End tag “div” seen, but there were open elements.
The “bgcolor” attribute on the “td” element is obsolete. Use CSS instead.
The “valign” attribute on the “tr” element is obsolete. Use CSS instead.
The “bgcolor” attribute on the “th” element is obsolete. Use CSS instead.
End tag “th” seen, but there were open elements.
Table column 2 established by element “th” has no cells beginning in it.
Attribute “border” not allowed on element “input” at this point.
Element “input” is missing required attribute “alt”.
The “align” attribute on the “input” element is obsolete. Use CSS instead.
Unclosed element “div”.
The “width” attribute on the “th” element is obsolete. Use CSS instead.
Attribute “valign” not allowed on element “font” at this point.
Element “li” not allowed as child of element “td” in this context. (Suppressing further errors from this subtree.)
Stray end tag “la”.
End tag “li” implied, but there were open elements.
Unclosed element “a”.
Start tag “a” seen but an element of the same type was already open.
No “a” element in scope but a “a” end tag seen.
The “align” attribute on the “th” element is obsolete. Use CSS instead.
Stray end tag “tr”.
Bad value “/plaats/Den Haag” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.
Bad value “klanten.php?pidnr=280554&sts=2019-07-13 17:15:00” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
A table cell was implicitly closed, but there were open elements.
Duplicate ID “key”.
End tag for “body” seen, but there were unclosed elements.
Warnings:
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “type” attribute is unnecessary for JavaScript resources.
A table row was 1 columns wide, which is less than the column count established by the first row (2).
The first occurrence of ID “key” was here.
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.