General
- Extension
- .cz
- Type
- Country-code extension
- Meaning
- Czechia
- Registry
- CZ.NIC, z.s.p.o
- Registry website
- www.nic.cz
- Registered since
- 13 January 1993
Properties
- DNSSEC signed
- yes
- Name servers
- 4 (4 with IPv6)
- WHOIS server
- whois.nic.cz
- RDAP server
- rdap.nic.cz
- At 1blu
- on request via kissdomain
Registration conditions
- Length
- At most 63 characters.
- Characters
- a–z, 0–9 and hyphen. No hyphen at the beginning or end, no two consecutive hyphens.
- Term
- In whole years, at most 10 years.
- Registrants outside the EU/EEA
- Must provide an address for service in the EU or EEA on request.
- Disputes
- Alternative dispute resolution under the rules of CZ.NIC.
The registry's current rules are binding: www.nic.cz.
Sources: CZ.NIC: Pravidla registrace (valid from 20 January 2026) · IANA Root Zone Database: .cz · As of 25 October 2026
Related extensions
No related extensions on offer.