Vdata.vn W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
End tag “div” seen, but there were open elements.
Unclosed element “span”.
Duplicate ID “checkdomain”.
Attribute “defaultvalue” not allowed on element “input” at this point.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Element “input” is missing required attribute “alt”.
The “font” element is obsolete. Use CSS instead.
Stray end tag “font”.
The “clear” attribute on the “br” element is obsolete. Use CSS instead.
Element “p” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
The “center” element is obsolete. Use CSS instead.
Warnings:
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The first occurrence of ID “checkdomain” was here.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
This document appears to be written in Vietnamese. Consider adding “lang="vi"” (or variant) to the “html” start tag.
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