Open WHOISbuilt by Just

.open WHOIS lookup

.open is managed by American Express Travel Related Services Company, Inc.. Its registry answers lookups over RDAP at rdap.nic.open, so a .open lookup here reads the registry directly.

Managed by

American Express Travel Related Services Company, Inc.
As listed by IANA

RDAP

rdap.nic.open
Lookups read the registry live

WHOIS server

whois.nic.open

DNSSEC

Signed
The ending is signed in the root zone

In the root zone since

21 July 2016

What a .open lookup shows

The registrar, when the domain was registered and when it expires, every status code in plain words, nameservers and DNSSEC, plus the mail setup read from DNS.

WHOIS vs RDAPWho owns a domain?All endings

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Ending: .open
Managed by: American Express Travel Related Services Company, Inc.
RDAP base URL: https://rdap.nic.open/
WHOIS server: whois.nic.open
DNSSEC signed in the root: yes
Source: IANA root zone database and RDAP bootstrap, read 2026-10-31
Lookup URL: https://openwhois.org/#d=example.open