Timestamp.online W3C HTML Markup Validation
HTML markup errors and warnings
(Rescan now...)
Errors:
Obsolete doctype. Expected “<!DOCTYPE html>”.
Bad value “cz” for attribute “lang” on element “html”: The language subtag “cz” is not a valid ISO language part of a language tag.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Bad value “Cache-control” for attribute “http-equiv” on element “meta”.
Bad value “Pragma” for attribute “http-equiv” on element “meta”.
Bad value “Expires” for attribute “http-equiv” on element “meta”.
The “tt” element is obsolete. Use CSS instead.
Start tag for “table” seen but the previous “table” is still open.
Duplicate ID “date-to-timestamp”.
Warnings:
The first occurrence of ID “date-to-timestamp” was here.
This document appears to be written in English but the “html” start tag has “lang="cz"”. Consider using “lang="en"” (or variant) instead.
India IN