A domain backorder is a service that helps you attempt to acquire a domain when it becomes available for registration. You can think of backorder like putting a reservation on a domain — you put your name on a list and when the domain expires, you’ll get a chance to register it before anyone else. Purchasing a backorder also includes a Domain Monitoring membership and one year of domain name registration. Domains that aren’t expired yet don’t include one year registration if the backorder is successful.