General
- Extension
- .co.kr
- Type
- Second-level extension
- Meaning
- Second-level zone under .kr (South Korea)
- Parent extension
- .kr
- Registry
- Korea Internet & Security Agency (KISA)
- Registry website
- www.nic.or.kr
- Registered since
- 29 September 1986 (.kr)
Properties
- DNSSEC in the root zone
- .kr: yes
- Name servers
- .kr: 6 (4 with IPv6)
- WHOIS server
- whois.kr
- RDAP server
- rdap.nic.or.kr
- At 1blu
- on request via kissdomain
Registration conditions
The registration conditions for this extension are set by the responsible registry. The current rules are on its website: www.nic.or.kr.
Sources: Registry Korea Internet & Security Agency (KISA) · IANA Root Zone Database: .kr · As of 25 October 2026