If you have checked out a lot of websites, you've probably come across some error message every now and then. An error may occur if the website hosting server cannot process a request (Error 400), if you must log in in order to see some content and you haven't done so (Error 401), if you are not permitted to access some page (Error 403) or if a link leads to a file which isn't on the website hosting server (Error 404). Receiving this sort of messages could often be frustrating because the pages have absolutely nothing in common with the actual website. That’s why some hosting companies allow you to set your own error pages that will match the style of your own site and which may have any content that you would like - information why the error has taken place, a suggestion what you can do or even some funny comment. This kind of feature will help you keep the visitor on the website no matter the error or the reason for it.