List of domain extensions

.crs

.crs is a generic extension, run by Federated Co-operatives Limited since 2014. Anyone can register a .crs name through a registrar that sells it.

TypeGeneric
Registry operatorFederated Co-operatives Limited
Who can registerAnyone
In the root zone since15 October 2014
DNSSECSigned
RDAP serverhttps://rdap.identitydigital.services/rdap/
WHOIS serverwhois.nic.crs
IANA recordiana.org/domains/root/db/crs

Look up a .crs domain

The .crs registry publishes registration data over RDAP. The free domain report reads it and shows a .crs domain's registrar, dates, status and DNS in one place. For the raw record, use the WHOIS lookup.

New to extensions? The guide to how domain extensions work covers generic, country-code and brand extensions. For who sells extensions in general, see the list of domain registrars.

Sources: the IANA root zone database and the ICANN list of generic extensions (refreshed 2026-10-24). Something out of date? Tell us.

Frequently asked questions

Who runs the .crs extension?

Federated Co-operatives Limited is the registry operator for .crs. The registry keeps the list of every .crs name; registrars sell the names to the public.

Can anyone register a .crs domain?

Yes. Anyone can register a .crs name through a registrar that sells it.

When was .crs created?

.crs was added to the DNS root zone on 15 October 2014, according to IANA.

How do I look up who owns a .crs domain?

The .crs registry publishes registration data over RDAP at https://rdap.identitydigital.services/rdap/ and over WHOIS at whois.nic.crs. The free domain report on lemon.domains reads it for you and shows the registrar, dates and status.

Is .crs signed with DNSSEC?

Yes. The .crs zone is signed, so a .crs domain can turn on DNSSEC once its registrar adds a DS record.