TR

.uk domain: registry, rules and WHOIS

UK businesses, organisations and individuals

Facts

Type
Country-code top-level domain (ccTLD)
Registry operator
Nominet
Country or territory
United Kingdom
Added to the root zone
1985
RDAP
Yes (rdap.nominet.uk)
Registration
Open to anyone
Typical use
UK businesses, organisations and individuals

RDAP availability is taken from the IANA RDAP bootstrap file published on 2026-09-16; WHOIS server and delegation year from the IANA root zone database. Registry policies change: check the registry's own policy before relying on an eligibility rule.

What is .uk?

.uk is the country-code top-level domain of the United Kingdom, run by Nominet. Historically every registration sat under a second-level zone such as .co.uk or .org.uk; since 2014 names can also be registered directly under .uk (example.uk).

Who can register it

Open to registrants anywhere in the world. Nominet asks registrars to validate registrant name and address data, and a name whose data cannot be validated may be suspended.

WHOIS, RDAP and privacy

An RDAP service for .uk (rdap.nominet.uk) is published in the IANA RDAP bootstrap file. OrbitProbe reads registration data from it first, as structured JSON: registrar, creation and expiry dates, EPP status codes and nameservers. For ccTLDs, what is published is decided by the registry and local law rather than by ICANN, so output differs from one extension to the next. Most registries do not show the personal data of individuals in public output. OrbitProbe only ever shows the organisation name and country.

Look up a .uk domain

FAQ

Who can register a .uk domain?

Open to registrants anywhere in the world. Nominet asks registrars to validate registrant name and address data, and a name whose data cannot be validated may be suspended.

How do I run a WHOIS lookup for a .uk domain?

Type the name, in the form example.uk, into the form on this page. OrbitProbe first queries the RDAP service of the .uk registry (rdap.nominet.uk). The result shows where the data came from and when it was observed.

Does .uk support RDAP?

Yes. The IANA RDAP bootstrap file dated 2026-09-16 publishes rdap.nominet.uk for .uk. The IANA record does not list a separate WHOIS server.