fetchwhois
Powered by the official IANA RDAP protocol

.co.uk WHOIS Lookup

Look up any .co.uk domain instantly. FetchWhois queries Nominet's RDAP server and returns the full registration record — registrar, key dates, nameservers, DNSSEC and available contact details — for any .co.uk domain.

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Instant results

Real-time WHOIS domain lookups resolved directly from authoritative RDAP servers — no queues, no waiting.

ICANN-grade accuracy

Every ICANN lookup pulls structured data straight from the registry and registrar, following the official RDAP standard.

Hundreds of TLDs

From .com and .org to .io, .dev and country-code domains — powered by the IANA bootstrap registry.

Private & simple

No sign-up and no domain upsells. Just clean, trustworthy WHOIS results every time.

How the .co.uk WHOIS lookup works

Live .co.uk results from Nominet's authoritative RDAP server.

1Step 1

Enter a .co.uk domain name

Type the full .co.uk domain into the search box, for example mybusiness.co.uk. Paste a URL and we extract just the domain automatically.

2Step 2

FetchWhois queries Nominet's RDAP server

Nominet operates the .co.uk namespace. We query their RDAP server live via the IANA bootstrap registry.

3Step 3

Read the .co.uk registration record

Registrar, creation and expiry dates, status codes, nameservers and DNSSEC data are shown. Nominet-specific data fields are included where present.

.co.uk domains: the UK's most popular domain extension

.co.uk is the most widely used second-level domain in the UK namespace, operated by Nominet. It has over 8 million active registrations, making it one of the largest ccTLD second-level namespaces in the world. .co.uk is the traditional home of UK businesses on the web and is widely recognized by UK consumers as the default British web address. Although .com dominates globally, many UK-facing brands and consumers prefer .co.uk for domestic credibility.

WHOIS lookups for .co.uk domains use Nominet's RDAP service. The data includes registrar name and contact, creation and expiry dates, nameservers and DNSSEC. Nominet's privacy policy and UK GDPR rules mean that individual registrant contact details are often masked, while company registrations (with a registered company name) may show the organization name. Nominet also shows its own registrar ID alongside the reseller registrar.

.co.uk WHOIS Lookup — Frequently Asked Questions

Everything you need to know about WHOIS, ICANN and RDAP domain lookups.