Errors:
Obsolete doctype. Expected “<!DOCTYPE html>”.
Bad value “” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “/edu/1942.htm” for attribute “rel” on element “a”: The string “/edu/1942.htm” is not a registered keyword.
Bad value “/edu/1941.htm” for attribute “rel” on element “a”: The string “/edu/1941.htm” is not a registered keyword.
Bad value “/edu/1940.htm” for attribute “rel” on element “a”: The string “/edu/1940.htm” is not a registered keyword.
Bad value “/edu/1939.htm” for attribute “rel” on element “a”: The string “/edu/1939.htm” is not a registered keyword.
Bad value “/edu/1938.htm” for attribute “rel” on element “a”: The string “/edu/1938.htm” is not a registered keyword.
Bad value “/edu/1937.htm” for attribute “rel” on element “a”: The string “/edu/1937.htm” is not a registered keyword.
Bad value “/edu/1936.htm” for attribute “rel” on element “a”: The string “/edu/1936.htm” is not a registered keyword.
Bad value “/edu/1935.htm” for attribute “rel” on element “a”: The string “/edu/1935.htm” is not a registered keyword.
Bad value “/edu/1254.htm” for attribute “rel” on element “a”: The string “/edu/1254.htm” is not a registered keyword.
Bad value “/edu/1934.htm” for attribute “rel” on element “a”: The string “/edu/1934.htm” is not a registered keyword.
Bad value “/edu/1933.htm” for attribute “rel” on element “a”: The string “/edu/1933.htm” is not a registered keyword.
Bad value “/edu/1932.htm” for attribute “rel” on element “a”: The string “/edu/1932.htm” is not a registered keyword.
Bad value “/edu/1715.htm” for attribute “rel” on element “a”: The string “/edu/1715.htm” is not a registered keyword.
Bad value “/edu/1931.htm” for attribute “rel” on element “a”: The string “/edu/1931.htm” is not a registered keyword.
Bad value “/edu/1929.htm” for attribute “rel” on element “a”: The string “/edu/1929.htm” is not a registered keyword.
Bad value “/edu/1251.htm” for attribute “rel” on element “a”: The string “/edu/1251.htm” is not a registered keyword.
Bad value “/edu/1928.htm” for attribute “rel” on element “a”: The string “/edu/1928.htm” is not a registered keyword.
Bad value “/edu/1927.htm” for attribute “rel” on element “a”: The string “/edu/1927.htm” is not a registered keyword.
Bad value “/edu/1925.htm” for attribute “rel” on element “a”: The string “/edu/1925.htm” is not a registered keyword.
Bad value “/edu/1924.htm” for attribute “rel” on element “a”: The string “/edu/1924.htm” is not a registered keyword.
Bad value “/edu/1923.htm” for attribute “rel” on element “a”: The string “/edu/1923.htm” is not a registered keyword.
Bad value “/edu/1922.htm” for attribute “rel” on element “a”: The string “/edu/1922.htm” is not a registered keyword.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
This document appears to be written in Russian. Consider adding “lang="ru"” (or variant) to the “html” start tag.
Russian Federation RU