Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Duplicate ID “mobilet-payment”.
Duplicate ID “mobilet-phone”.
Duplicate ID “mobilet-email”.
Duplicate ID “option-1”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Heading cannot be a child of another heading.
End tag “div” seen, but there were open elements.
Unclosed element “h2”.
Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).
Warnings:
The first occurrence of ID “mobilet-payment” was here.
The first occurrence of ID “mobilet-phone” was here.
The first occurrence of ID “mobilet-email” was here.
The first occurrence of ID “option-1” was here.
The “navigation” role is unnecessary for element “nav”.
Empty heading.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
This document appears to be written in Polish. Consider adding “lang="pl"” (or variant) to the “html” start tag.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
Poland PL