.CO.UK Domain Registration & WHOIS

The .CO.UK domain extension is The United Kingdom's most established commercial second-level domain, managed by Nominet since 1996. For nearly two decades it served as the primary namespace for UK businesses before direct .uk registrations were introduced in June 2014. Despite the availability of shorter .uk domains, .co.uk retains millions of active registrations and remains the most recognized and trusted UK business extension. Nominet's strict abuse policies contribute to .co.uk having one of the lowest cybercrime and spam rates among global domain extensions. It requires a minimum label length of 2 characters and supports up to 63 characters. It does not support IDN characters, meaning only standard English characters are allowed. Registration is completely open and unrestricted globally to individuals and organizations.

To search for who owns a specific domain registered under this extension, you can perform a live query in our WHOIS portal above. The registry operator database will respond in real time with server details, domain status codes, registration/expiry dates, and name server arrays.