Top-level domain

.cz

Delegated in the DNS root zone

Overview

Type
Country-code TLD
RDAP server
https://rdap.nic.cz/
Name servers
4 in the root zonea.ns.nic.czb.ns.nic.czc.ns.nic.czd.ns.nic.cz
DNSSEC
Signed: DS in the root zone, ECDSAP256SHA256 (13)
Root zone serial
2026102601

Sources

Delegation and type come from the IANA TLD list; name servers and DNSSEC from the root zone file; the RDAP server from the IANA RDAP bootstrap. Fields without data are left out. Refreshed daily (iana-rdap-dns 2026-10-26, iana-tlds 2026-10-26, root-zone 2026-10-26). All TLDs · Sources

GET /api/v2/tld/cz