All TLDs / .komatsu

What is .komatsu?

The short answer
.komatsu is a brand top-level domain, operated by Komatsu 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
Komatsu Ltd

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

Is .komatsu a real domain extension?

Yes — .komatsu 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 .komatsu?

.komatsu is operated by Komatsu Ltd., per the IANA root database.

What is .komatsu used for?

.komatsu is a dot-brand registry — it's reserved for Komatsu Ltd. and isn't used for third-party websites.

Can anyone register a .komatsu domain?

No. .komatsu 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.