Ensure every <nav> section includes at least one navigational link (<a>, <button role="link">, etc.) to provide meaningful navigation landmarks.
<nav>
<ul>
<li><a href="/home">Home</a></li>
</ul>
</nav><nav>
<ul></ul>
</nav>When: A <nav> has no <a> or equivalent links inside
Warning: <nav> contains no links
Solution: Include at least one link inside <nav>
Accessibility: Empty nav landmarks are announced without useful content, impairing navigation :contentReference[oaicite:8]{index=8}.
SEO: Navigation structures without links offer no crawlable paths for search engines.
Prevent empty navigation landmarks by enforcing the presence of links in <nav> elements.
H97: Grouping related links using the nav element per WCAG Technique H97.The <nav> element is a sectioning container for links; empty or link-less nav elements break page semantics.