Errors:
Malformed byte sequence: “f6”.
Malformed byte sequence: “96”.
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Bad value “https://www.w3.org/1999/xhtml” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).
Attribute “xmlns:fb” not allowed here.
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”.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
The “select” element cannot have more than one selected “option” descendant unless the “multiple” attribute is specified.
Malformed byte sequence: “fc”.
Malformed byte sequence: “ae”.
Bad value “https://www.port01.com/citytipps/Moenchengladbach/City-Tipps-zu-Sch�nheit-&-Sport_42-filter-alle-58.htm” for attribute “href” on element “a”: Illegal character in path segment: “�” is not allowed.
Duplicate ID “container”.
Duplicate ID “main”.
Duplicate attribute “class”.
Malformed byte sequence: “84”.
Malformed byte sequence: “93”.
Malformed byte sequence: “e4”.
Attribute “datetime” not allowed on element “div” at this point.
Element “p” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Malformed byte sequence: “df”.
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The first occurrence of ID “container” was here.
The first occurrence of ID “main” was here.
This document appears to be written in German. Consider adding “lang="de"” (or variant) to the “html” start tag.
Austria AT