Ketäon nic.lu ?

% Access to RESTENA DNS-LU WHOIS information is provided to assist persons
% in determining the content of a domain name registration record in the LU
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% WHOIS nic.lu
domainname: nic.lu
domaintype: ACTIVE
nserver: ns1.restena.lu
nserver: ns2.restena.lu
ownertype: ORGANISATION
org-country: LU
registrar-name: Fondation Restena
registrar-email: info@my.lu
registrar-url: https://my.lu
registrar-country: LU
%
% More details on the domain may be available at below whois-web URL.
% Next to possible further data a form to contact domain operator or
% request further details is available.
whois-web: https://www.dns.lu/en/support/domainname-availability/whois-gateway/