Backup target

You can optionally configure a property with a backup target. If Global Traffic Management determines that all of the servers configured for your property are down, and you have configured a backup target, queries for the property will return the backup target. If you have not configured a backup target, and all servers are down, Global Traffic Management assumes that all servers are up. If all servers are down, Global Traffic Management returns the IP addresses of the dead (down) servers so it does not return an empty answer.