Rules / link rules

link.internal.lowercase

Default

warn

Plugin

link

An internal link has no uppercase letters.

Why: URL paths are case-sensitive, so /About/ and /about/ are different URLs, and one of them may not exist.

The rule warns, and does not fail. Google asks for one case, not for lowercase. A link with the wrong case to a page of the build fails site.link.exists.

When off: links with uppercase letters pass.

<!-- ✗ Fails -->
<a href="/About/">About</a>

<!-- ✓ Passes -->
<a href="/about/">About</a>

References

• Google: URL structure: URLs are case-sensitive. Google asks for one case, not for lowercase, so the rule warns.