Registrant Alert is the industry's first service to provide active monitoring of domain registrants.

DomainTools has leveraged the power of its Registrant Search engine to provide notifications whenever a person or company registers a new domain, has one transfered to them, or transfers a domain out of their control.

Registrant Alert does not depend on a specific name server or registrar allowing new insight of domain registration trends that wasn't previously available through other tools like Name Server Spy.