If a particular page on an Internet site doesn't load for some reason or if a link is broken, the site visitor will 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 solution in this case is a function made available from some web hosting companies - the option to set your own personalized error pages which will have identical layout as your website and which can contain any text or images that you'd like based on the particular error. There are four common errors that could take place and they involve these particular 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 are supposed to log in to see some page, but you haven't done this yet; 403, if you do not have an authorization to see a certain page; and 404, if a link which you've clicked leads to a file that doesn't exist. In each of these situations, visitors shall be able to see your custom made content instead of a generic error page.