Rules / link rules

link.href.exists

Default

error

Plugin

link

A link has an href attribute.

Why: An <a> without href is not a link, so search engines do not follow it, and keyboards cannot reach it.

When off: links without href pass.

<!-- ✗ Fails -->
<a onclick="go()">Menu</a>

<!-- ✓ Passes -->
<a href="/menu/">Menu</a>

References

• Google: Link best practices: Google can only reliably crawl <a> elements with an href.