What is .yokohama?
.yokohama entered the DNS root zone on April 3, 2014, 12 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.
GMO Registry, Inc. also runs 3 other TLDs, including .nagoya, .shop and .tokyo.
On the technical side, .yokohama 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 .yokohama, which lets validating resolvers check its answers cryptographically. Registration data is published over RDAP and WHOIS (the WHOIS server is whois.nic.yokohama).
Same registry, other endings
3 other TLDs share this operator.
.yokohama FAQ
What does .yokohama mean?
.yokohama is a generic top-level domain named for the word "yokohama", and it's aimed at cities & regions. It doesn't belong to any country.
What is .yokohama used for?
.yokohama is mostly used for cities & regions. Like most gTLDs, it's a label of intent rather than a guarantee — check the site, not just the ending.
What country is .yokohama?
None. .yokohama is a generic top-level domain, so it isn't tied to any country.
Who owns the .yokohama domain extension?
GMO Registry, Inc. operates .yokohama as its registry, under a registry agreement with ICANN.
When was .yokohama created?
.yokohama was delegated to the DNS root zone on April 3, 2014.
Is .yokohama a valid domain?
Yes. .yokohama is an active top-level domain in the DNS root zone, delegated in 2014, so .yokohama addresses work in every browser.
Can I buy a .yokohama domain?
.yokohama names are sold through ICANN-accredited registrars. Some gTLDs restrict who can register, so read GMO Registry, Inc.'s policy if you're unsure.
Is .yokohama DNSSEC-signed?
Yes, the root zone holds a DS record for .yokohama.
Sources
Data from IANA root zone version 2026102000. Last changed August 20, 2019. Spotted something wrong? Tell us.