.gb
.gb is a country-code extension for the United Kingdom, run by Reserved Domain - IANA. Reserved Domain - IANA sets who can register .gb names; some country codes need a local address, so check its rules before you buy.
| Type | Country code |
|---|---|
| Registry operator | Reserved Domain - IANA |
| Country | United Kingdom |
| Who can register | Set by the registry |
| DNSSEC | Not signed |
| RDAP server | None listed |
| WHOIS server | None listed |
| IANA record | iana.org/domains/root/db/gb |
More extensions for the United Kingdom
| .uk | Country code |
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 Something out of date?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 .gb extension?
Reserved Domain - IANA is the registry operator for .gb, the country-code extension for the United Kingdom. The registry keeps the list of every .gb name; registrars sell the names to the public.
Can anyone register a .gb domain?
Reserved Domain - IANA sets who can register .gb names; some country codes need a local address, so check its rules before you buy.
How do I look up who owns a .gb domain?
The .gb registry doesn't publish a public RDAP or WHOIS server listed with IANA, so registration data has to come from the registry's own website.
Is .gb signed with DNSSEC?
No. The .gb zone isn't signed with DNSSEC in the root zone.