Website Builder allows you to manually create up to five backup copies of your website, and if necessary, restore your website from a backup version. Before you can restore a previous version of your website, you must have created a backup copy. The restore options do not display if you haven't created a backup copy. For more information, see Importing Content from Previous Projects or Backup Files.
NOTE: A backup of the Website is automatically created whenever you publish your Website, restore it, select a new theme or restart your device. A maximum of five backups are created. The oldest of the five versions is deleted whenever a new backup is created. There's no time limit on using the backups.