Errors:
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Attribute “itemprop” not allowed on element “meta” at this point.
Bad start tag in “img” in “head”.
Bad value “https://www.facebook.com/tr?ev=6025444649835&cd[value]=0.00&cd[currency]=VND&noscript=1” for attribute “src” on element “img”: Illegal character in query: “[” is not allowed.
Stray end tag “noscript”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Bad value “” for attribute “id” on element “span”: An ID must not be the empty string.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “{” instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “aria-labelledby” attribute must point to an element in the same document.
The “aria-controls” attribute must point to an element in the same document.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
Empty heading.
This document appears to be written in Vietnamese. Consider adding “lang="vi"” (or variant) to the “html” start tag.
Viet Nam VN