When your website generates an error, such as a 404, it produces an error page to let visitors know what issue occurred. If you would like a list of errors that may be generated as well as more information about what they mean.
On shared hosting, these are branded with HostGator branding by default, and on a VPS or Dedicated server, they are generally blank white error messages. However, you can design these pages to have your branding or unique information to help assist visitors experiencing errors.
How do I create custom pages for errors?
To create a custom page for the errors generated by your account, please log in to cPanel and click Error Pages under Advanced. Select the domain or subdomain you want and click the page you want to edit. Insert your own custom page code (in HTML or SHTML). The changes will be applied after you click Save.