Yes, you can set up your own custom error pages by using the .htaccess file (it is located in your public_html folder) or by navigating to your cPanel and clicking on the 'Error Pages' icon. This will give you access to the easy-to-use Custom Error Page Creator.
If Internet Explorer is not displaying the custom error page, it is likely because the error page must be larger than 1 kilobyte.
There are many error pages that may be defined.
Client Request Errors
400 - Bad Request
401 - Authorization Required
403 - Forbidden
404 - Not Found
405 - Method Not Allowed
406 - Not Acceptable (encoding)
407 - Proxy Authentication Required
408 - Request Timed Out
409 - Conflicting Request
410 - Gone
411 - Content Length Required
412 - Precondition Failed
413 - Request Entity Too Long
414 - Request URI Too Long
415 - Unsupported Media Type
Server Errors
500 - Internal Server Error
501 - Not Implemented
502 - Bad Gateway
503 - Service Unavailable
504 - Gateway Timeout
505 - HTTP Version Not Supported
How can I revert back to the default error pages?
Simply delete the error page from the public_html folder:
404.shtml
403.shtml
500.shtml