Checks if the server returns a 404 HTTP status code for non-existent pages.
A 404 'Not Found' error occurs when a user tries to access a page that doesn't exist. A custom 404 page is a user-friendly page you create to be shown in this situation, instead of the browser's ugly default error.
A good custom 404 page improves user experience. It acknowledges the error, keeps the user on your site, and provides helpful links (like a search bar or a link to the homepage) to help them find what they were looking for.
A generic 404 error is a dead end that often causes users to leave your site. A custom page can help retain that visitor.
Run a free audit to see how your site performs on Custom 404 Page and 159 other checks.
Start Free Audit