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 attribute “alt”.
Attribute “img” not allowed on element “img” at this point.
Element “p” not allowed as child of element “h1” in this context. (Suppressing further errors from this subtree.)
Duplicate attribute “class”.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “delay” not allowed on element “div” at this point.
Bad value “Prove More. Do More.” for attribute “name” on element “a”: An ID must not contain whitespace.
Saw “<” when expecting an attribute name. Probable cause: Missing “>” immediately before.
A slash was not immediately followed by “>”.
Attribute “<” not allowed on element “div” at this point.
Attribute “div” not allowed on element “div” at this point.
Bad value “More for Exhibitors and Sponsors” for attribute “name” on element “a”: An ID must not contain whitespace.
Bad value “The Proof” for attribute “name” on element “a”: An ID must not contain whitespace.
Bad value “Ready to discover what really matters?” for attribute “name” on element “a”: An ID must not contain whitespace.
End tag for “body” seen, but there were unclosed elements.
Unclosed element “div”.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
Attribute “<” is not serializable as XML 1.0.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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