Redirect Loop is an error where redirects point in a cycle and never reach a final working page.
It matters because technical issues can prevent great content from being discovered, rendered, indexed, or trusted. Strong technical foundations protect rankings during redesigns, migrations, content expansion, and platform changes.
Example
Page A redirects to page B, while page B redirects back to page A. The browser cannot reach a final page until one of those rules is corrected, so inspect both server and application redirect settings.