.nico
.nico is a brand extension, run by DWANGO Co., Ltd. since 2015. Only DWANGO Co., Ltd., its affiliates and trademark licensees can register .nico names; they are not for sale to the public.
| Type | Brand |
|---|---|
| Registry operator | DWANGO Co., Ltd. |
| Who can register | Brand owner only Brand extension: only the registry operator, its affiliates and trademark licensees register names. |
| In the root zone since | 10 February 2015 |
| DNSSEC | Signed |
| RDAP server | https://rdap.gmoregistry.net/rdap/ |
| WHOIS server | whois.nic.nico |
| IANA record | iana.org/domains/root/db/nico |
Look up a .nico domain
The .nico registry publishes registration data over RDAP. The free domain report reads it and shows a .nico 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 Something out of date?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 .nico extension?
DWANGO Co., Ltd. is the registry operator for .nico. The registry keeps the list of every .nico name; registrars sell the names to the public.
Can anyone register a .nico domain?
Only DWANGO Co., Ltd., its affiliates and trademark licensees can register .nico names; they are not for sale to the public.
When was .nico created?
.nico was added to the DNS root zone on 10 February 2015, according to IANA.
How do I look up who owns a .nico domain?
The .nico registry publishes registration data over RDAP at https://rdap.gmoregistry.net/rdap/ and over WHOIS at whois.nic.nico. The free domain report on lemon.domains reads it for you and shows the registrar, dates and status.
Is .nico signed with DNSSEC?
Yes. The .nico zone is signed, so a .nico domain can turn on DNSSEC once its registrar adds a DS record.