.cpa
.cpa is a generic extension, run by American Institute of Certified Public Accountants since 2019. Anyone can register a .cpa name through a registrar that sells it.
| Type | Generic |
|---|---|
| Registry operator | American Institute of Certified Public Accountants |
| Who can register | Anyone |
| In the root zone since | 20 September 2019 |
| DNSSEC | Signed |
| RDAP server | https://rdap.nic.cpa |
| WHOIS server | whois.nic.cpa |
| IANA record | iana.org/domains/root/db/cpa |
Look up a .cpa domain
The .cpa registry publishes registration data over RDAP. The free domain report reads it and shows a .cpa 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 Something out of date?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 .cpa extension?
American Institute of Certified Public Accountants is the registry operator for .cpa. The registry keeps the list of every .cpa name; registrars sell the names to the public.
Can anyone register a .cpa domain?
Yes. Anyone can register a .cpa name through a registrar that sells it.
When was .cpa created?
.cpa was added to the DNS root zone on 20 September 2019, according to IANA.
How do I look up who owns a .cpa domain?
The .cpa registry publishes registration data over RDAP at https://rdap.nic.cpa and over WHOIS at whois.nic.cpa. The free domain report on lemon.domains reads it for you and shows the registrar, dates and status.
Is .cpa signed with DNSSEC?
Yes. The .cpa zone is signed, so a .cpa domain can turn on DNSSEC once its registrar adds a DS record.