All TLDs / .nico

What is .nico?

The short answer
.nico is a brand top-level domain, operated by DWANGO Co., Ltd. It's a “dot-brand” registry (ICANN Spec 13) — reserved for the operator's own use, so it isn't open for the public to register. It's live in the official IANA DNS root zone.
Type
Brand (dot-brand)
Registration
Closed (brand)
In DNS root
Yes
Operator
DWANGO Co., Ltd

Source: IANA root zone database, checked October 18, 2026.

Is .nico a real domain extension?

Yes — .nico is a real top-level domain. It's present in the official IANA DNS root zone, which is the authoritative list of every live TLD on the internet.

Who runs .nico?

.nico is operated by DWANGO Co., Ltd., per the IANA root database.

What is .nico used for?

.nico is a dot-brand registry — it's reserved for DWANGO Co., Ltd. and isn't used for third-party websites.

Can anyone register a .nico domain?

No. .nico is a closed brand registry, so it isn't available for public registration. A registrar search will confirm the current policy for any specific name.