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.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
End tag “aside” seen, but there were open elements.
Unclosed element “div”.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
The string following “&” was interpreted as a character reference. (“&” probably should have been escaped as “&”.)
Element “tbody” not allowed as child of element “table” in this context. (Suppressing further errors from this subtree.)
Attribute “name” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.
Bad value “mailto:info@inpoland.net.pl?subject=InPoland. Вопрос” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
End tag “footer” seen, but there were open elements.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
The “contentinfo” role is unnecessary for element “footer”.
This document appears to be written in Ukrainian but the “html” start tag has “lang="ru-RU"”. Consider using “lang="uk"” (or variant) instead.
Poland PL