Errors:
Attribute “xmlns:fb” not allowed here.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
The “center” element is obsolete. Use CSS instead.
No “p” element in scope but a “p” end tag seen.
The “width” attribute on the “table” element is obsolete. Use CSS instead.
The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.
The “align” attribute on the “table” element is obsolete. Use CSS instead.
The “bgcolor” attribute on the “table” element is obsolete. Use CSS instead.
The “align” attribute on the “tr” element is obsolete. Use CSS instead.
The “bgcolor” attribute on the “tr” element is obsolete. Use CSS instead.
Bad element name “fb:comments-count”: Code point “U+003A” is not allowed
Element “div” not allowed as child of element “ol” in this context. (Suppressing further errors from this subtree.)
No “li” element in scope but a “li” end tag seen.
Element “ul” not allowed as child of element “ol” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “respond”.
Heading cannot be a child of another heading.
Stray end tag “h4”.
Stray end tag “h3”.
Warnings:
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
Element name “fb:comments-count” cannot be represented as XML 1.0.
The first occurrence of ID “respond” was here.
Empty heading.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
This document appears to be written in Thai but the “html” start tag has “lang="en-US"”. Consider using “lang="th"” (or variant) instead.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
Thailand TH