Errors:
Bad value “” for attribute “id” on element “html”: An ID must not be the empty string.
Element “meta” is missing one or more of the following attributes: “charset”, “content”, “http-equiv”, “itemprop”, “name”, “property”.
A “charset” attribute on a “meta” element found after the first 1024 bytes.
Element “script” must not have attribute “defer” unless attribute “src” is also specified.
Stray end tag “ul”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The element “footer” must not appear as a descendant of the “header” element.
Element “img” is missing required attribute “src”.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
Attribute “webkitallowfullscreen” not allowed on element “iframe” at this point.
Attribute “mozallowfullscreen” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Bad value “true” for attribute “async” on element “script”.
Warnings:
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
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).
Empty heading.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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