Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Bogus comment.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
No “li” element in scope but a “li” end tag seen.
Duplicate ID “Capa_1”.
Duplicate ID “menu-item-lang-en”.
Duplicate ID “menu-item-lang-de”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Start tag “a” seen but an element of the same type was already open.
End tag “div” seen, but there were open elements.
Unclosed element “a”.
No “a” element in scope but a “a” end tag seen.
The element “button” must not appear as a descendant of the “a” element.
Duplicate ID “rtp-8-testimonial”.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “Capa_1” was here.
The first occurrence of ID “menu-item-lang-en” was here.
The first occurrence of ID “menu-item-lang-de” was here.
The “main” role is unnecessary for element “main”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “rtp-8-testimonial” was here.
The “contentinfo” role is unnecessary for element “footer”.
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