Registered information about Internet domains is available to the public.
Every year, millions of individuals, businesses, organizations and governments register domain names. Each one must provide identifying and contact information which may include: name, address, email, phone number, and administrative and technical contacts.
This excerpt is from ICANN's About WHOIS web page as it appeared on January 1, 2020.
The WHOIS service is a free, publicly available directory containing the contact and technical information of registered domain name registrants. Anyone who needs to know who is behind a website domain name can make a request for that information via WHOIS. The data is collected and made available by registrars and registries under the terms of their agreements with ICANN.
This excerpt is from ICANN's WHOIS Primer web page as it appeared on January 1, 2020.
New Internet domain names for Naturist Legacy Inc. were purchased this week. We now own naturistlegacy.com, naturistlegacy.net and naturistlegacy.org. Purchasing the three most common Top Level Domains (.com, .net. and .org) will serve to protect the integrity of our brand going forward. A temporary placeholder page will eventually be replaced with a new professionally hosted corporate Web site. Work on the design of that new site is well underway....