.one
.one is a generic extension, run by One.com A/S since 2015. Anyone can register a .one name through a registrar that sells it.
| Type | Generic |
|---|---|
| Registry operator | One.com A/S |
| Who can register | Anyone |
| In the root zone since | 22 January 2015 |
| DNSSEC | Signed |
| RDAP server | https://rdap.nic.one/ |
| WHOIS server | whois.nic.one |
| IANA record | iana.org/domains/root/db/one |
Registrars that sell .one
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All 20 registrars for .one. Other registrars may sell it too.
Look up a .one domain
The .one registry publishes registration data over RDAP. The free domain report reads it and shows a .one 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 Something out of date?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 .one extension?
One.com A/S is the registry operator for .one. The registry keeps the list of every .one name; registrars sell the names to the public.
Can anyone register a .one domain?
Yes. Anyone can register a .one name through a registrar that sells it.
When was .one created?
.one was added to the DNS root zone on 22 January 2015, according to IANA.
How do I look up who owns a .one domain?
The .one registry publishes registration data over RDAP at https://rdap.nic.one/ and over WHOIS at whois.nic.one. The free domain report on lemon.domains reads it for you and shows the registrar, dates and status.
Is .one signed with DNSSEC?
Yes. The .one zone is signed, so a .one domain can turn on DNSSEC once its registrar adds a DS record.