`html.refresh`

Default: warn
Plugin: html

A page does not redirect with a meta refresh.

Why: Google treats an instant meta refresh as a permanent redirect, and a delayed one as a temporary redirect, but recommends a server redirect, and uses a meta refresh only when a server redirect is not possible. A meta refresh also loads the old page first, and a delayed one can move the page while a visitor reads it.

When off: pages with a meta refresh pass. Turn the rule off when your host cannot redirect.

<!-- ✗ Fails -->
<meta http-equiv="refresh" content="0; url=https://example.com/new/" />

References

Google: Redirects and Google Search: Google recommends server redirects, and accepts a meta refresh only as a fallback, so the rule warns.