Nothing is worse than discovering that all the material on your website is suddenly gone. You may have been working on your website or blog for years, and suddenly, all your hard work is gone, which is especially bad if you make a lot of money from your website. Unfortunately, these things happen occasionally and can be caused by a server crash or a nasty hacker. Thankfully, you can always restore your website if you have a backup at your hosting company or elsewhere. Many web hosts back up all your websites for you on a daily basis, partly to keep you safe and partly because the web host is responsible for your lost websites in case their server crashes. If your website or websites are affected, the web host will restore them from their latest backup, but keep in mind that if your website was last backed up four hours ago, all the material you have added since then is gone.remember