Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “lang_de”.
Duplicate ID “lang_en”.
Duplicate ID “text-18”.
No space between attributes.
Element “a” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “de”.
Duplicate ID “booking_dpdhotel”.
Element “h1” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
No “p” element in scope but a “p” end tag seen.
Duplicate attribute “class”.
Bad value “tel:+49 381 45 85 110” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
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.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
End of file inside comment.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “lang_de” was here.
The first occurrence of ID “lang_en” was here.
The first occurrence of ID “text-18” was here.
The “form” role is unnecessary for element “form”.
The first occurrence of ID “de” was here.
The first occurrence of ID “booking_dpdhotel” was here.
The “contentinfo” role is unnecessary for element “footer”.
This document appears to be written in German. Consider adding “lang="de"” (or variant) to the “html” start tag.
Germany DE