Apex, subdomain, or URL. We figure it out.
Results for
RDAP source
https://rdap.nic.cz
port 43: whois.nic.cz
The domain is active in the registry.
WHOIS source
whois.nic.cz
REG-INTERNET-CZ
Datawall, s.r.o. INTERNET CZ, a.s. Capsa.cz, s.r.o.
Make a direct request at ICANN.