Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Attribute “alt” not allowed on element “a” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Duplicate ID “site-navigation”.
Bad value “” for attribute “id” on element “input”: An ID must not be the empty string.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “secondarywidget”.
Duplicate ID “”.
Bad value “” for attribute “id” on element “div”: An ID must not be the empty string.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
Bad value “” for attribute “src” on element “iframe”: Must be non-empty.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “site-navigation” was here.
The “main” role is unnecessary for element “main”.
The first occurrence of ID “secondarywidget” was here.
The first occurrence of ID “” was here.
Empty heading.
The “contentinfo” role is unnecessary for element “footer”.
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