What is .jcb?
Brand TLDs operate under Specification 13 of ICANN's registry agreement. It lets a trademark owner keep every second-level name for itself, so you won't find .jcb names for sale at any registrar.
.jcb entered the DNS root zone on January 23, 2015, 11 years ago. It came out of ICANN's New gTLD Program, the 2012 application round that grew the root from 22 generic TLDs to well over a thousand.
On the technical side, .jcb is served by 4 authoritative name servers, 3 of them reachable over IPv6. It is also DNSSEC-signed: the root zone carries a DS record for .jcb, which lets validating resolvers check its answers cryptographically. Registration data is published over RDAP and WHOIS (the WHOIS server is whois.nic.gmo).
.jcb FAQ
What country is .jcb?
None. .jcb is a generic top-level domain, so it isn't tied to any country.
Who owns the .jcb domain extension?
JCB Co., Ltd. operates .jcb as its registry, under a registry agreement with ICANN.
When was .jcb created?
.jcb was delegated to the DNS root zone on January 23, 2015.
Is .jcb a valid domain?
Yes. .jcb is an active top-level domain in the DNS root zone, delegated in 2015, so .jcb addresses work in every browser.
Can I buy a .jcb domain?
No. .jcb is a brand TLD under ICANN Specification 13, so names are reserved for JCB Co., Ltd.
Is .jcb DNSSEC-signed?
Yes, the root zone holds a DS record for .jcb.
Sources
Data from IANA root zone version 2026102000. Last changed August 20, 2019. Spotted something wrong? Tell us.
