Errors:
Bad value “//www.w3.org/1999/xhtml” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).
Bad value “cache-control” for attribute “http-equiv” on element “meta”.
Bad value “Cache-Control” for attribute “http-equiv” on element “meta”.
Bad value “expires” for attribute “http-equiv” on element “meta”.
Bad value “pragma” for attribute “http-equiv” on element “meta”.
Bad value “true” for attribute “async” on element “script”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “span” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Element “input” is missing required attribute “alt”.
Attribute “tag” not allowed on element “a” at this point.
Duplicate ID “594”.
Duplicate ID “595”.
Duplicate ID “599”.
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The first occurrence of ID “594” was here.
The first occurrence of ID “595” was here.
The first occurrence of ID “599” was here.
This document appears to be written in Russian. Consider adding “lang="ru"” (or variant) to the “html” start tag.
Russian Federation RU