Warnings:
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “content” 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 “blueIcon” was here.
The first occurrence of ID “learn” was here.
The first occurrence of ID “win64” was here.
The first occurrence of ID “win32” was here.
The first occurrence of ID “macintel64” was here.
The first occurrence of ID “” was here.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “type” attribute is unnecessary for JavaScript resources.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
Errors:
Character reference was not terminated by a semicolon.
No “li” element in scope but a “li” end tag seen.
Stray end tag “ul”.
Duplicate ID “content”.
Element “p” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Start tag “a” seen but an element of the same type was already open.
Stray end tag “a”.
Duplicate ID “blueIcon”.
Element “a” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
End tag “header” seen, but there were open elements.
Unclosed element “div”.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Heading cannot be a child of another heading.
No “p” element in scope but a “p” end tag seen.
Duplicate ID “learn”.
End tag “section” seen, but there were open elements.
The “center” element is obsolete. Use CSS instead.
Bad value “https://1.na.dl.wireshark.org/osx/Wireshark 2.6.6 Intel 64.dmg” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.
Duplicate ID “win64”.
Duplicate ID “win32”.
Duplicate ID “macintel64”.
Bad value “https://1.na.dl.wireshark.org/osx/Wireshark 2.4.12 Intel 64.dmg” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.
Bad value “https://1.na.dl.wireshark.org/osx/Wireshark 3.0.0rc2 Intel 64.dmg” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.
Bad value “” for attribute “id” on element “div”: An ID must not be the empty string.
Duplicate ID “”.
End tag “div” seen, but there were open elements.
Unclosed element “section”.
Unclosed element “article”.
Stray end tag “div”.
Stray end tag “section”.
United States US