When you run a site, having a backup is something rather essential, particularly if you have important information or you have invested money and time in creating the Internet site. There are numerous situations why you could need a backup - if you update a script and something breaks down, if you erase a file or a whole folder by mistake, etc. Having regular backups will help you avoid any loss of information or at least minimize the damage, which is still better than losing the entire site. You'll be able to download a copy of your content on your computer once in a while, but as you simply can't do that after each and every change, you have to rely on the backups which your host company generates. Due to the fact that this is something extremely crucial, you need to ensure that they keep up-to-date backups, since a backup performed once every one or two weeks will not do any good when you run a site such as an online store or an accommodation booking portal.