This site offers a WHOIS lookup service which allows you to perform a WHOIS lookup on a domain name or whois lookup on IP address to see who owns it or where this ip belongs to. This service queries the appropriate WHOIS server for the domain name & IP and displays the response which is a public record that anyone can see. In some cases, the owner of a domain name (the "registrant") may choose not to have their address and contact information displayed.