Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “banner” role is unnecessary for element “header”.
Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “searchform” was here.
The first occurrence of ID “s” was here.
The first occurrence of ID “searchsubmit” was here.
The first occurrence of ID “main_menu” was here.
The “contentinfo” role is unnecessary for element “footer”.
Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “searchform”.
Duplicate ID “s”.
Duplicate ID “searchsubmit”.
Duplicate ID “main_menu”.
Attribute “data” not allowed on element “svg” at this point.
Bad character “<” after “<”. Probable cause: Unescaped “<”. Try escaping it as “<”.
Element “div” not allowed as child of element “h1” in this context. (Suppressing further errors from this subtree.)
End tag “div” seen, but there were open elements.
Unclosed element “h3”.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
Attribute “tweet-id” not allowed on element “li” at this point.
Bad value “noindex” for attribute “rel” on element “a”: The string “noindex” is not a registered keyword.
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