Let us just get the basics cleared first.
An individual or entity that registers a domain name is known as a domain name registrant. A registrant enters into a contract with a registrar when they register a domain name. The contract spells forth the conditions under which the registrar will register and maintain the requested name.
Confused !!!
Let me explain let us suppose you buy a domain yourcompanyname.com from GoDaddy. In this case, you are the registrars of the domain and GoDaddy is the domain name registrant.
These Registrants eg GoDaddy must supply registrars with up-to-date contact information when registering a domain, according to ICANN regulations. This data is available to the public in the Whois database, which functions as a huge address book that anybody can access.
So how to find the owner of a domain
A WHOIS lookup service can be used to determine who owns a domain. There are various free sites that can help you figure out who owns a domain name. But we will use the official ICANN service to track down the domain owner.So here are the steps