If a particular page on an Internet site does not load for some reason or in case a link is broken, the site visitor shall see an error page with some generic message. The page will have nothing in common with the rest of the Internet site, which may make the visitor leave your Internet site. A solution in cases like this is a feature made available from some website hosting companies - the option to set up your own personalized error pages that shall have the same design and style as your site and which may contain any text or images that you'd like depending on the specific error. There are 4 common errors which can 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 webpage, but you haven't done this yet; 403, if you do not have a permission to view a specific page; and 404, when a link that you've clicked leads to a file which doesn't exist. In any of these cases, visitors shall be able to see your custom content instead of a generic error page.