.cz TLD information
Registry, RDAP server, WHOIS server, DNSSEC and IDN support for .cz.
Overview
- TLD
- .cz
- Type
- ccTLD
- IDN TLD
- Not supported
- Registry
- CZ.NIC, z.s.p.o
- Country
- Czechia
- Registration start date
- 1993-01-13
- DNSSEC
- Enabled
- RDAP server
- https://rdap.nic.cz/
- WHOIS server
- whois.nic.cz
General registration information
Eligibility
- Registration category
- Open registration
- Individual registration
- Supported
- Organization registration
- Supported
- Local address requirement
- No restriction
- Local entity/agent requirement
- No
- Trademark requirement
- No
Length & IDN support
- Allowed length (ASCII letters, digits and hyphens)
- 1–63 characters
- IDN registration
- Not supported
- Allowed length (IDN)
- -
Second-level registration categories
None (registration only directly under the TLD)
.cz domain power ranking
| Rank | Change | Domain | Power Rank | Referring Domains |
|---|---|---|---|---|
| 1 | － | mapy.cz | 75.7 | 36,712 |
| 2 | － | seznam.cz | 75.1 | 32,175 |
| 3 | ▲ 1 | webnode.cz | 73.7 | 31,422 |
| 4 | ▲ 2 | toplist.cz | 73.3 | 17,316 |
| 5 | － | google.cz | 73.1 | 29,417 |
| 6 | ▼ 3 | shoptet.cz | 72.7 | 22,355 |
| 7 | ▲ 1 | phoca.cz | 71.8 | 20,388 |
| 8 | ▼ 1 | idnes.cz | 71.6 | 31,488 |
| 9 | － | uoou.cz | 70.2 | 17,829 |
| 10 | － | ceskatelevize.cz | 69.4 | 18,697 |
Frequently asked questions
- What is the difference between a gTLD and a ccTLD?
- gTLDs are generic top-level domains, while ccTLDs are assigned to countries or territories. Eligibility rules differ per TLD.
- What does DNSSEC support mean?
- It means the TLD supports DNSSEC signing. Whether it is actually enabled depends on each domain's configuration.
- Is this information up to date?
- TLD and registry information is sourced from public data such as IANA. Eligibility rules can change, so please also check each registry's official information for the latest details.