What is WHOIS?
Pronounced as the phrase who is, this system’s sole purpose is to ask the following question: who is responsible for an IP address or domain name?
Upon signing up for a domain, you must provide some general information about yourself like name, address, phone number and email. This is referred to as your WHOIS data. It is managed by domain registrars and used to identify you with whatever domain you’ve just recently purchased.
Who can see my contact information, and how can I protect it?
All registrars are required make WHOIS data open to the public. Anyone anywhere can search the WHOIS database through any search engine to learn the registered name holder of a domain. To try it out for yourself, head to who.is and search a domain name. For instance, searching facebook.com brings up the following information:
Most can agree that they would prefer not to have their home address posted on the Internet for all to see. Not to worry, there is a way to cloak your identity while still providing valid contact information for the WHOIS database.