404 Not Found is a standard HTTP error message that indicates a client’s request could not be fulfilled because the requested resource could not be found on the server.

Site managers can use 404 logs to track instances of links returning a 404 Not Found error message.

Managing 404 Not Found in WordPress

All in One SEO (AIOSEO) includes a Redirection Manager which enables users to track and redirect 404 links.

After viewing 404 logs, users can click Add Redirect to redirect the 404 URL.

Learn more in Logging 404 Errors in All in One SEO (AIOSEO).