Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Duplicate ID “search-box”.
Stray end tag “a”.
Attribute “cat-desc” not allowed on element “input” at this point.
Attribute “blur-isbn” not allowed on element “div” at this point.
Element “span” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “nobr” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
Duplicate ID “news-pref1”.
Duplicate ID “newsletter-email-box”.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “search-box” was here.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “news-pref1” was here.
The first occurrence of ID “newsletter-email-box” was here.
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).
United States US