.coop
.coop is a sponsored extension, run for a specific community, run by DotCooperation LLC since 2001. Cooperatives and organisations that support or represent them.
| Type | Sponsored |
|---|---|
| Registry operator | DotCooperation LLC |
| Who can register | Rules apply Cooperatives and organisations that support or represent them. |
| In the root zone since | 20 December 2001 |
| DNSSEC | Signed |
| RDAP server | https://rdap.registry.coop/rdap/ |
| WHOIS server | whois.nic.coop |
| IANA record | iana.org/domains/root/db/coop |
Registrars that sell .coop
| Integrated | |
| Integrated | |
| Integrated | |
| Integrated | |
| Integrated | |
| Integrated |
From the list of domain registrars. Other registrars may sell it too.
Look up a .coop domain
The .coop registry publishes registration data over RDAP. The free domain report reads it and shows a .coop 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 Something out of date?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 .coop extension?
DotCooperation LLC is the registry operator for .coop. The registry keeps the list of every .coop name; registrars sell the names to the public.
Can anyone register a .coop domain?
Cooperatives and organisations that support or represent them.
When was .coop created?
.coop was added to the DNS root zone on 20 December 2001, according to IANA.
How do I look up who owns a .coop domain?
The .coop registry publishes registration data over RDAP at https://rdap.registry.coop/rdap/ and over WHOIS at whois.nic.coop. The free domain report on lemon.domains reads it for you and shows the registrar, dates and status.
Is .coop signed with DNSSEC?
Yes. The .coop zone is signed, so a .coop domain can turn on DNSSEC once its registrar adds a DS record.