Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.
Bad value “true” for attribute “async” on element “script”.
Attribute “adtype” not allowed on element “div” at this point.
Attribute “pkg” not allowed on element “div” at this point.
Duplicate ID “site-search”.
Attribute “atf” not allowed on element “div” at this point.
Attribute “defaultsize” not allowed on element “div” at this point.
Attribute “small” not allowed on element “div” at this point.
Attribute “medium” not allowed on element “div” at this point.
Attribute “extra-small” not allowed on element “div” at this point.
Attribute “large” not allowed on element “div” at this point.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
Element “style” not allowed as child of element “header” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “video-detail-187527508-1512172677785”.
Element “img” is missing required attribute “src”.
Bad value “true” for attribute “readonly” on element “textarea”.
The text content of element “time” was not in the required format: The literal did not satisfy the time-datetime format.
Duplicate ID “video-detail-187629403-1512172680456”.
Attribute “audience” not allowed on element “div” at this point.
Attribute “articleid” not allowed on element “div” 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 element “header” must not appear as a descendant of the “footer” element.
Bad value “http://#collapseOne” for attribute “href” on element “a”: Invalid host: empty host.
Bad value “http://#collapseTwo” for attribute “href” on element “a”: Invalid host: empty host.
Bad value “http://#collapseThree” for attribute “href” on element “a”: Invalid host: empty host.
Bad value “http://#collapseFour” for attribute “href” on element “a”: Invalid host: empty host.
Bad value “http://#collapseFive” for attribute “href” on element “a”: Invalid host: empty host.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “banner” role is unnecessary for element “header”.
The first occurrence of ID “site-search” was here.
The “navigation” role is unnecessary for element “nav”.
Text run is not in Unicode Normalization Form C.
The first occurrence of ID “video-detail-187527508-1512172677785” 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).
The first occurrence of ID “video-detail-187629403-1512172680456” was here.
Empty heading.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
This document appears to be written in Spanish but the “html” start tag has “lang="en"”. Consider using “lang="es"” (or variant) instead.
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