When you register your domain name, you will notice that the registrar will ask you for quite a lot of information: your name, your e-mail address, your physical address and your telephone number.
This information completes two of the three registration profiles for your domain name: Registrant and Administrative Contact. Subsequently, all three registration profiles (Registrant, Admin and Technical Contacts) will be publicly available and accessible in your registry database.
What if you want your information to remain private? After all, the database is publicly available, which means that spammers, scammers and stalkers can also access it. Furthermore, lying about your registration data is illegal.
There are many registrars that offer private domain registrations, with or without additional cost. With a private registration, your name will still appear in the registry. However, instead of your full contact profile, the registrar will include your information: a proxy registration.