If a particular page on a site doesn't load for some reason or if a link is broken, the visitor shall see an error page with some generic message. The page shall have nothing in common with the rest of the Internet site, which may make the visitor leave your Internet site. A possible solution in such a case is a function offered by some web hosting providers - the ability to set up your own personalized error pages which will have exactly the same design and style as your Internet site and which may contain any images or text that you'd like dependent upon the specific error. There are 4 common errors that could take place and they involve the following so-called HTTP status codes - 400, when your browser sends a bad request to the hosting server and it can't be processed; 401, if you are supposed to log in to see some web page, but you have not done this yet; 403, if you do not have an authorization to view a specific page; and 404, if a link which you have clicked leads to a file which does not exist. In all of these scenarios, site visitors shall be able to see your personalized content as opposed to a generic error page.