Why it matters
WHOIS used to show an owner's name, email and phone. Privacy rules and proxy services now hide most of this, so a lookup often shows only the registrar, creation date, expiry date and status codes. Those facts still help. A broker can see how old a name is, when it expires and which registrar holds it. Contacting the owner usually takes another route. A common mistake is trusting a WHOIS email as proof of who owns a name. It may be a forwarding address, a proxy or old data. Use it as a clue, not as proof.
Source: lookup.icann.org
Read nextHow to Find Out Who Owns a Domain Name (WHOIS, RDAP, and Privacy)