If a particular page on a site doesn't load for some reason or in case a link is broken, the visitor shall see an error page with a generic message. The page will have nothing in common with the rest of the site, that could make the visitor leave your website. A possible solution in this case is a function offered by some website hosting service providers - the option to set up your own personalized error pages which shall have identical style and design as your site and that may contain any images or text which you want depending on the particular error. There are 4 well-known errors which can take place and they involve these so-called HTTP status codes - 400, when your world-wide web browser sends a bad request to the hosting server and it can't be processed; 401, if you're supposed to log in to see a webpage, but you have not done so yet; 403, if you don't have an authorization to view a specific page; and 404, in case a link that you've clicked leads to a file that does not exist. In each of these scenarios, visitors will be able to see your custom made content instead of a generic error page.