.cz domain lookup
Country code extension (ccTLD) for Czechia.
Technical details
- Type
- ccTLD
- Registry
- CZ.NIC, z.s.p.o
- WHOIS server (port 43)
- whois.nic.cz
- RDAP endpoint
- https://rdap.nic.cz/
- Added to the root zone
- Jan 13, 1993
- IANA record last changed
- Mar 7, 2023
IANA data: Oct 6, 2026
What does the registry publish?
Based on the record of google.cz (RDAP, Oct 6, 2026):
- Registrar: not published
- Creation date: published
- Last update: published
- Expiry date: published
- Status codes: published
- Name servers: published
- DNSSEC: not published
- Registrant: not published
- Abuse contact: not published
The registrant's personal data is redacted.
Status codes in the sample record
- active
What happens when a domain expires?
For country code extensions the periods depend on the registry. See the .cz registry's rules for exact durations.
Questions about .cz
›What is the .cz whois server?
The port 43 WHOIS server for .cz is whois.nic.cz.
›Does .cz support RDAP?
Yes. RDAP endpoint: https://rdap.nic.cz/
›How do I find when a .cz domain expires?
Type the domain in the box above; if the registry publishes the expiry date, the whois card shows it along with the days left.
›Can I see who owns a .cz domain?
Usually not: according to our sample check this registry redacts the registrant's personal data. The registrar and dates are still visible.