When you register a domain, you are obliged to supply an authentic postal address, email and phone number as per the policy approved by the Internet Corporation for Assigned Names and Numbers (ICANN). This info, though, is not kept only by the registrar company, but is visible to the public on WHOIS lookup sites as well, so anyone can check your details and some people may not be okay with this. As a result, a lot of registrar companies have launched the so-called ID Protection service, which conceals the domain registrant’s details and upon a WHOIS lookup, people will see the details of the registrar company, not the domain owner’s. This service is also popular as WHOIS Protection or Privacy Protection, but all these expressions refer to the exact same service. Currently, most of the TLDs around the globe allow ID Protection to be activated, but there are still country-specific extensions that do not support this service.