The Web's Most Powerful Whois/DNS Tool
Welcome to the most powerful DNS/Reverse DNS lookup tool on the
Internet!
This tool automates many of the forward and reverse lookups needed to
gather information about a domain name, server, and a network—
including mail servers associated with a domain.
Obtaining contact information for domain
and network owners is critical in reporting abuse, spam, and
cracking attempts.
The GeoIP option will report the location of the IP address when doing DNS and reverse DNS lookups (except for DNS record dumps).