Zortrax.com W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “contentinfo” role is unnecessary for element “footer”.
The first occurrence of ID “searchHeader” 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).
Errors:
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 “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Bad value “heading” for attribute “role” on element “header”.
Stray end tag “div”.
The element “header” must not appear as a descendant of the “footer” element.
An element with “role=tab” must be contained in, or owned by, an element with “role=tablist”.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
Duplicate ID “searchHeader”.
The “aria-controls” attribute must point to an element in the same document.
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