Enter a name server and our Reverse NS Lookup tool will show you all of the domains currently pointed there. Results
include all gTLD domains and any known ccTLD domains. Lookups are free for DomainTools
Personal and Enterprise Members, for name servers with up to 1,000 served domains.
Use Reverse NS Lookup to:
Find all the domains pointed to a given name server.
Track the domains that come and go on a competitors name server.
Expand research on a target domain name—By using Reverse NS Lookup you can often
find other domains owned by a given individual. In cases of Whois privacy on a
target domain, knowing other connected domains might surface one with valid owner information.
Submit a list of domain names, and receive a .csv file with parsed Whois records for the domains.
Upgrade Your Membership and Elevate Your Defenses
You've got valuable starting data with Whois. Now it's time to take that information and make deeper connections to profile attackers, guide online fraud investigations, and map attacker infrastructure.