When you register a domain name, you are asked to provide a valid address, email account and phone number as per the policy adopted by ICANN, the Internet Corporation for Assigned Names and Numbers. This info, however, is not kept only by the domain registrar, but is available to the public on WHOIS sites as well, so anyone can check your details and some people may not be OK with this. As a result, many registrars have introduced the so-called Whois Privacy Protection service, which hides the domain name registrant’s contact information and upon a WHOIS check, people will see the details of the domain registrar, not those of the domain owner. This service is also known as Privacy Protection or Whois Privacy Protection, but all these names refer to one and the same service. As of now, most of the TLDs around the world allow Whois Privacy Protection to be enabled, but there are still country-specific extensions that don’t support this service.