Just like saving work when you’re writing a paper, or preparing an important report for work, it is important to save copies of your website. As it’s called in the tech world, you always want to have a “backup.” Backing up, plain and simple, is saving a duplicate version of all your work. This includes your website pages, pdfs, images, and  if you have a WordPress website, the theme and related site files (like plugins) as well as your database (which includes posts, users, comments, etc.).