Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Internal encoding declaration “iso-8859-1” disagrees with the actual encoding of the document (“utf-8”).
Bad value “text/html; charset=iso-8859-1” for attribute “content” on element “meta”: “iso-8859-1” is not a preferred encoding name. The preferred label for this encoding is “windows-1252”.
Bad value “only screen and (max-device-width: 30px)” for attribute “media” on element “link”: Deprecated media feature “max-device-width”. For guidance, see the Deprecated Media Features section in the current Media Queries specification.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Text not allowed in element “iframe” in this context.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Stray end tag “img”.
Malformed byte sequence: “e6”.
Malformed byte sequence: “f8”.
Malformed byte sequence: “e5”.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “top_main_image”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “center” element is obsolete. Use CSS instead.
Attribute “alt” not allowed on element “a” at this point.
Duplicate ID “article_4column”.
Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&”.)
Malformed byte sequence: “80”.
Bad value “http://www.tweak.dk/news/57567/Apple-iMac-Pro-kan-goere-dig�1615698-fattigere-” for attribute “href” on element “a”: Illegal character in path segment: “�” is not allowed.
Duplicate ID “bottom_youtube”.
Duplicate ID “morevid”.
Duplicate ID “vid_title”.
Element “h1” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “youtube_4column”.
Duplicate ID “title”.
Duplicate ID “content”.
The element “button” must not appear as a descendant of the “a” element.
Duplicate ID “a2bb749d”.
End tag for “body” seen, but there were unclosed elements.
Unclosed element “div”.
Warnings:
The first occurrence of ID “top_main_image” was here.
The first occurrence of ID “article_4column” was here.
The first occurrence of ID “bottom_youtube” was here.
The first occurrence of ID “morevid” was here.
The first occurrence of ID “vid_title” was here.
The first occurrence of ID “youtube_4column” was here.
The first occurrence of ID “title” was here.
The first occurrence of ID “content” was here.
The first occurrence of ID “a2bb749d” was here.
This document appears to be written in Danish but the “html” start tag has “lang="en"”. Consider using “lang="da"” (or variant) instead.
Denmark DK