Top-level domain

.cisco

Delegated in the DNS root zone

Overview

RDAP server
https://rdap.nic.cisco/
Name servers
6 in the root zonea.nic.ciscob.nic.ciscoc.nic.ciscons1.dns.nic.ciscons2.dns.nic.ciscons3.dns.nic.cisco
DNSSEC
Signed: DS in the root zone, RSASHA256 (8)
Root zone serial
2026102701

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 2026-10-27, iana-tlds 2026-10-27, root-zone 2026-10-27). All TLDs · Sources

GET /api/v2/tld/cisco