- Category
- Country code
- IANA type
- Country Code
- Country
- South Korea
- Manager
- Korea Internet & Security Agency (KISA)
- Script
- Latin
- DS in root
- 1 record(s)
- Algorithm
- 13 · ECDSA P-256
- Second-level
- 33 suffixes
- IDN names
- yes, 1 scripts/languages
- WHOIS
- whois.kr
- RDAP
- yes
Checked 26 Oct 2026 by our weekly check.
Is a .kr name registered?
Looked up from your browser in the registry's RDAP service; if that does not answer, in DNS. Nothing is stored on dnssec.in.What this means
The root zone holds a DS record for .kr, so the extension is signed and anchored. A domain under .kr can use DNSSEC with a full chain of trust: it needs to be signed at its DNS host and have its own DS at the registrar. .kr is the country code for South Korea; its registry sets who can register.
Second-level suffixes under .kr (33)
You can register names directly under .kr or under these suffixes, for example example.co.kr. Some are restricted to certain users (government, education, banks). Source: the Public Suffix List.
- .ac.kr
- .ai.kr
- .busan.kr
- .chungbuk.kr
- .chungnam.kr
- .co.kr
- .daegu.kr
- .daejeon.kr
- .es.kr
- .gangwon.kr
- .go.kr
- .gwangju.kr
- .gyeongbuk.kr
- .gyeonggi.kr
- .gyeongnam.kr
- .hs.kr
- .incheon.kr
- .io.kr
- .it.kr
- .jeju.kr
- .jeonbuk.kr
- .jeonnam.kr
- .kg.kr
- .me.kr
- .mil.kr
- .ms.kr
- .ne.kr
- .or.kr
- .pe.kr
- .re.kr
- .sc.kr
- .seoul.kr
- .ulsan.kr
IDN names under .kr
The registry publishes IDN tables at IANA for 1 scripts or languages, so names can use these characters (stored as xn-- in the DNS):
- Korean (Republic of Korea) Language
Length
DNS limits are the same everywhere: each label is 1 to 63 characters, the whole name at most 253, letters, digits and hyphens, not starting or ending with a hyphen. IDN labels count their xn-- form, so fewer native characters fit. A registry can set a higher minimum (often 2 or 3 characters) or reserve short names: that is in its own policy.
WHOIS and RDAP
RDAP (the JSON successor to WHOIS) answers at https://rdap.nic.or.kr/. Classic WHOIS (port 43) answers at whois.kr.
Lifecycle and drop
Country code extensions set their own lifecycle: grace periods, redemption and release dates differ from country to country and are not covered by ICANN's gTLD policies. Read the registry's rules: http://www.nic.or.kr/.