404 Error
A 404 Error is an HTTP response code that indicates that the server could not find the requested webpage. It often occurs when a page has been deleted or moved without redirecting the old URL to a new one. While 404 errors are common, they can negatively impact user experience and site ranking if not managed properly. Ensuring that your website has a custom 404 error page that guides users back to a working page can help mitigate these issues.