Backups of your sites
Your site is a large file folder. All the information about it is contained in the "upload place" of your site - the hosting company. I've introduced my practice, the sites I've made to have a backup saved by me. This is another backup that can be used if needed. Everything happen. You may inadvertently even delete your site yourself and it will disappear. So it's nice to have a backup option for such situations. Hosting companies also keep archived copies, but if anything happens, we have to deal with other people with our problems. So, periodically or after changing the content, I make a new backup and it's up to me.