Check .CO.UK domain availability, register a new .CO.UK domain, search multiple names in bulk, or transfer your existing .CO.UK domains to NiceNIC. Built for businesses, domain investors, agencies, hosting providers, and resellers.
Need lower .CO.UK pricing? Upgrade account level for bulk registration and reseller pricing.
.CO.UK is widely recognized by UK customers and is often the first namespace checked for companies, shops, agencies, and local services. NiceNIC supports availability search, bulk lists, transfers, DNS, business email, SSL, and reseller workflows for .CO.UK buyers.
Add funds and pay for domain services using supported crypto options such as USDT, BTC, ETH, and LTC. Automated crypto deposit recording helps account balances update quickly after successful confirmation, with no extra NiceNIC processing fee for automated deposits.
NiceNIC provides real human support, not only scripted replies. Our team can review your domain needs, explain practical options, and give account-level, transfer, bulk registration, and reseller suggestions to help your domain business grow.
NiceNIC does not take arbitrary action against domains. Abuse reports are reviewed based on available evidence, policies, and registry requirements, with domain owners guided to review, fix, or explain reported issues where appropriate.
Manage .CO.UK together with 2,500+ domain extensions from one NiceNIC account, including country-code, generic, and new domain extensions. This helps businesses, investors, and resellers build global domain coverage more efficiently.
NiceNIC supports 47+ website languages, creating a multilingual registrar experience for international users and teams. This makes domain registration, renewal, transfer, account management, and support easier across different markets.
For hosting providers, agencies, platforms, and domain resellers, NiceNIC supports reseller API access for domain registration, renewal, transfer, DNS, account-level pricing, and custom nameserver services.
Nominet reported 8.5M .CO.UK registrations in its latest 2026 public UK namespace breakdown. This section explains .CO.UK scale, commercial positioning, selected public sales examples, and practical workflows for business buyers and resellers.
Nominet public UK namespace breakdown for 2026.
.CO.UK share of 392.5M total domain registrations.
Total domain registrations across all TLDs in Q1 2026.
This chart compares .CO.UK with major domain categories using Q1 2026 domain-name-base data. It gives buyers a clear view of how this UK namespace fits within the wider TLD market.
.CO.UK is familiar, commercial, and widely trusted for UK-facing companies that want customers to understand the market focus immediately.
Customers in the UK often associate .CO.UK with active businesses, shops, services, and local brands.
A .CO.UK address can make a UK landing page or customer service site feel specific to the local market.
Agencies and hosting providers often need .CO.UK for client launches, defensive names, and reseller bundles.
The latest benchmark is 2026. Selected Nominet snapshots show .CO.UK as the largest published namespace inside the .UK family.
Selected public premium .CO.UK domain sales examples show how short, clear, commercially meaningful names can carry strong brand value. These examples are for market context only, not investment advice or a guarantee of future resale value.
A UK shop, an agency client, a domain investor, and a reseller platform all use .CO.UK differently. The four cards below keep the original layout while focusing on real .CO.UK workflows.
Use .CO.UK when the website represents a UK company, ecommerce store, or local service.
Register .CO.UK early when a client brief is UK-focused and brand availability matters.
Review commercial keywords carefully because .CO.UK liquidity is strongest when there is real UK buyer demand.
Offer .CO.UK as a core UK product for customers who expect a familiar business namespace.
If you already own .CO.UK domains elsewhere, transfer decisions should not be based only on one renewal invoice. Check transfer eligibility, ownership access, billing reliability, support response time, API needs, and long-term domain management.
Paste multiple .CO.UK names, remove duplicates, review the count, and continue to bulk registration. This is useful for domain investors, brand teams, agencies, hosting providers, and resellers.
Enter one name per line, with or without .CO.UK. The tool removes duplicates and prepares a clean list for bulk registration.
If your business sells hosting, websites, SaaS, agency services, or brand protection packages, NiceNIC reseller APIs can support domain registration, renewal, transfer, DNS, and account management.
# NiceNIC API v2 endpoint
# Applies to supported domain extensions, including .com, .net, .org, ccTLDs, and new gTLDs
https://api.nicenic.net/v2/
# Required headers
Authorization: username:api_secret
Content-Type: application/json
# Check domain availability across multiple extensions
curl "https://api.nicenic.net/v2/?category=domain&action=check&domains=example.com,example.net,mybrand.org" \
-H "Authorization: username:api_secret" \
-H "Content-Type: application/json"
# Get registration / renewal / transfer pricing for any supported extension
curl "https://api.nicenic.net/v2/?category=domain&action=get_price&domain=example.com&type=register&year=1" \
-H "Authorization: username:api_secret" \
-H "Content-Type: application/json"
# Change the domain value to query another TLD:
# example.com, example.net, example.org, example.ai, example.co
# Standard response format
{
"code": 0,
"msg": "success",
"data": {}
}
Short answers for buyers who need to confirm namespace fit, registration rules, bulk search, transfer handling, or reseller/API support before continuing.
.CO.UK is a third-level namespace under the .UK country-code domain. It is widely used for UK commercial websites, shops, agencies, and local services.
The .CO.UK namespace is part of the .UK family managed by Nominet UK. Registrations are handled through registrar channels under Nominet rules.
.CO.UK is generally available to a broad range of registrants, subject to Nominet rules, accurate registrant data, and current registry policy.
For many UK commercial websites, .CO.UK is still the most familiar customer-facing option. Direct .UK is shorter, so brands often compare both before choosing.
Yes. Many businesses check both versions to protect the brand, reduce customer confusion, and choose the best primary website address.
Yes. You can start with one name here or use NiceNIC bulk domain search to compare many .CO.UK names, brand variants, and defensive registrations.
The transfer process follows Nominet and registrar requirements. Confirm the domain is eligible, check the current registrar process, and prepare any required approval before using domain transfer.
Yes. .CO.UK has several publicly reported completed sales, so this page includes selected sales bars for market context only.
Yes. NiceNIC supports bulk management and reseller API workflows for agencies, hosting providers, and resellers that need scalable .CO.UK domain operations.
Register a new .CO.UK, transfer an existing domain, or upgrade your account level for bulk registration and reseller API use.
