Your FTP-Stream site is backed up every hour on the hour. We call these backups snapshots - they are a complete snap of your site frozen in time.
We keep your snapshots for 12 weeks, you can list your snapshots, explore the contents of each snap and restore any files or folders that may have been accidentally deleted or overwritten.
Your site is backed up locally at your chosen data center. Unless you are using our replication feature your files are never copied outside your chosen data center and we keep no persistent backups beyond the 12 week snapshot cycle.