Enter an IP address and our patented Reverse IP Lookup tool will show you all of the domains currently hosted there. Results
include all gTLD domains and any known ccTLD domains. Lookups are free for DomainTools
Personal and Enterprise Members, for IPs with up to 2,000 hosted domains.
Use Reverse IP Lookup to:
Find all the domains hosted on a given IP address.
Track the domains that come and go on a competitors IP address.
Expand research on a target domain name—By using Reverse IP 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.