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A 404 error simply means the server couldn't find anything at the requested address — but the fix depends on why that page is missing.
Common Causes
A page was deleted or renamed without a redirect, a link was typed incorrectly, or an external site is linking to an outdated URL on your domain.
Why 404s Matter for SEO
Search engines eventually drop indexed pages that consistently return 404s, and a poor experience from broken links can hurt how visitors perceive your site's overall quality.
Finding Your Broken Links
Google Search Console's coverage report lists 404 errors it has encountered while crawling your site, giving you a concrete list to work through rather than guessing.
The Right Fix: 301 Redirects
When you move or rename a page, a 301 redirect points visitors (and search engines) from the old URL to the new one, preserving both user experience and accumulated SEO value.
Custom 404 Pages
Even with redirects in place, a genuinely broken link will happen occasionally. A helpful custom 404 page with a search bar or links to popular content keeps visitors from bouncing immediately.
Setting Up Redirects
Plesk and most CMS platforms offer a straightforward redirect manager, letting you map old URLs to new destinations without touching server configuration files directly.
