Osd.at W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Obsolete doctype. Expected “<!DOCTYPE html>”.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Element “input” is missing required attribute “alt”.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “Locations”.
Duplicate attribute “&”.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “&” not allowed on element “a” at this point.
Attribute “laid” not allowed on element “a” at this point.
Attribute “"” not allowed on element “a” at this point.
Warnings:
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The first occurrence of ID “Locations” was here.
Empty heading.
Attribute “&” is not serializable as XML 1.0.
Attribute “"” is not serializable as XML 1.0.
This document appears to be written in German. Consider adding “lang="de"” (or variant) to the “html” start tag.
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