Errors:
Element “title” not allowed as child of element “head” in this context. (Suppressing further errors from this subtree.)
Element “script” must not have attribute “async” unless attribute “src” is also specified.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Bad value “//fonts.googleapis.com/css?family=Open+Sans:600|Merriweather:700|Raleway:normal|Open+Sans:normal&subset=latin” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.
Attribute “_lpchecked” not allowed on element “form” at this point.
Attribute “xmlns:v” not allowed here.
Duplicate attribute “rel”.
Bad value “v:url” for attribute “rel” on element “a”: The string “v:url” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
No “p” element in scope but a “p” end tag seen.
Duplicate ID “navigation”.
Duplicate ID “logo”.
Element “script” must not have attribute “defer” unless attribute “src” is also specified.
Warnings:
The “banner” role is unnecessary for element “header”.
Attribute with the local name “xmlns:v” is not serializable as XML 1.0.
The “contentinfo” role is unnecessary for element “footer”.
The first occurrence of ID “navigation” was here.
The first occurrence of ID “logo” was here.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
This document appears to be written in Indonesian but the “html” start tag has “lang="en-US"”. Consider using “lang="id"” (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).
Indonesia ID