If a particular page on an Internet site doesn't load for some reason or if a link is not functioning, the visitor will see an error page with some generic message. The page will have nothing in common with the rest of the website, which could make the visitor leave your site. A likely solution in such a case is a function made available from some website hosting service providers - the option to set up your own custom-made error pages that shall have exactly the same design and style as your Internet site and that can contain any images or text that you would like based on the specific error. There are four well-known errors that may take place and they involve these so-called HTTP status codes - 400, when your Internet browser sends a bad request to the web server and it can't be processed; 401, if you're supposed to log in to see some web page, but you haven't done this yet; 403, if you don't have a permission to view a certain page; and 404, if a link which you have clicked leads to a file that does not exist. In all of these scenarios, website visitors shall be able to see your personalized content as opposed to a generic error page.