By registering a domain name, you accept that your information will be made public.
This includes information about who manages the technical aspects of the domain in the event the domain or its use causes technical issues for others.
The owner of the domain name is also made public so that, if necessary, legal action can be taken against the right person in the event of legal wrongdoing. This information is made public in accordance with German data privacy protection law.
The service used to request domain name information is referred to as "Whois".