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