- Category
- Country code
- IANA type
- Country Code
- Country
- Niue
- Manager
- The IUSN Foundation
- Script
- Latin
- DS in root
- 1 record(s)
- Algorithm
- 13 · ECDSA P-256
- IDN names
- yes, 1 scripts/languages
- WHOIS
- whois.iis.nu
- RDAP
- not in IANA's RDAP list
Checked 26 Oct 2026 by our weekly check.
Is a .nu 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 .nu, so the extension is signed and anchored. A domain under .nu 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. .nu is the country code for Niue; its registry sets who can register.
IDN names under .nu
The registry publishes IDN tables at IANA for 1 scripts or languages, so names can use these characters (stored as xn-- in the DNS):
- Latin Script
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
This extension is not in IANA's RDAP list. Classic WHOIS (port 43) answers at whois.iis.nu.
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.