If a specific page on a website doesn't load for some reason or if a link is not working, the website visitor shall see an error page with some generic message. The page will have nothing in common with the rest of the website, which can make the visitor leave the website. A likely solution in this case is a feature made available from some web hosting service providers - the ability to set up your own personalized error pages that will have exactly the same style and design as your site and which may contain any images or text you want depending on the particular error. There are 4 standard errors which may take place and they involve the following so-called HTTP status codes - 400, when your Internet browser sends a bad request to the server and it cannot be processed; 401, if you're supposed to log in to see some webpage, but you have not done this yet; 403, if you do not have a permission to see a specific page; and 404, when a link which you've clicked leads to a file that does not exist. In any of these scenarios, visitors will be able to see your custom content as opposed to a generic error page.