A method for synchronizing management of a plurality of domain names in a Domain Name System (DNS), which method comprises: receiving a synchronization request for synchronizing a first object related to a first renewal date of a first domain name with a second object related to a second renewal date of a second domain name, the synchronization request including an explicit identifier only of the first domain name but not of the second domain name; locate both the first object and the second object in a domain name database; determining a renewal date which is earlier than at least one of the first renewal date and the second renewal date; and synchronizing as a backwards synchronization operation the first object and the second object to both have said renewal date, such that both the first domain name and the second domain name are configured to expire on said renewal date.