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OVER 3.5 MILLION DOMAINS REGISTERED
.co.uk from £3.99* for the 1st year
Put your business on the map with .co.uk
OVER 25 YEARS OF DOMAIN EXPERTISE
Loved by locals
Award-winning support
OVER 3.5 MILLION DOMAINS REGISTERED
.co.uk from £3.99* for the 1st year
Put your business on the map with .co.uk
OVER 25 YEARS OF DOMAIN EXPERTISE
Loved by locals
Award-winning support
OVER 3.5 MILLION DOMAINS REGISTERED
.co.uk from £3.99* for the 1st year
Put your business on the map with .co.uk
OVER 25 YEARS OF DOMAIN EXPERTISE
Loved by locals
Award-winning support
OVER 3.5 MILLION DOMAINS REGISTERED
.co.uk from £3.99* for the 1st year
Put your business on the map with .co.uk
OVER 25 YEARS OF DOMAIN EXPERTISE
Loved by locals
Award-winning support
OVER 3.5 MILLION DOMAINS REGISTERED
.co.uk from £3.99* for the 1st year
Put your business on the map with .co.uk
OVER 25 YEARS OF DOMAIN EXPERTISE
Loved by locals
Award-winning support
OVER 3.5 MILLION DOMAINS REGISTERED
.co.uk from £3.99* for the 1st year
Put your business on the map with .co.uk
OVER 25 YEARS OF DOMAIN EXPERTISE
Loved by locals
Award-winning support
Why choose a .co.uk domain name?
Registering a .co.uk shows you're proudly British and ready to serve UK customers. It helps build trust from the moment visitors see your .co.uk address and works well for shops, services or anyone who wants to show they're based in Britain. And with 123 Reg, it's great value too.
Built for British brands
.co.uk is made for British businesses, from local start-ups to established brands.
Trusted by UK shoppers
Put your business firmly on the UK map with a domain customers recognise.
Recognised globally
Give your brand a domain with global appeal. Well-known, easy to remember, and trusted by search engines.
About .co.uk domains
Launched in 1985, .co.uk is now one of the world's best-known domain endings. More than 10 million .co.uk domains are registered, making it one of the world's most widely used country-code domains. The “.co” stands for commercial, making it a natural choice for UK businesses and .co.uk is the country-code domain extension for the United Kingdom.
How to buy a .co.uk domain name
Registering a .co.uk gives your brand a trusted local web address. With 123 Reg, it only takes a few minutes to get started.
- Search for your domain
Type your .co.uk business name or idea to check if it’s available. Consider a matching .uk domain to help protect your brand. - Pick your domain
Choose a domain that's easy to remember, on-brand and simple for customers to type. Not sure where to start? Try our AI Domain Search for ideas and smart suggestions. - Add to basket and check out
Add your domain to your basket and head to checkout to register it. Add Domain Ownership Protection for extra privacy and peace of mind.
Start searching for a .co.uk domain now!
Why buy a domain with 123 Reg?
A trusted UK domain registrar
Over 25 years' experience and 3.5 million domains registered. 123 Reg is one of the UK's leading providers, trusted by thousands of businesses.
Over 25 years' experience and 3.5 million domains registered. 123 Reg is one of the UK's leading providers, trusted by thousands of businesses.
Simple to set up
Register your domain and connect it to your website, email or online store in just a few clicks.
Register your domain and connect it to your website, email or online store in just a few clicks.
Security you can rely on
Domain Privacy is included with eligible domains. Upgrade to Domain Ownership Protection for extra peace of mind.
Easy domain management
Manage where your domain points visitors and emails (DNS settings) from one simple dashboard.
Support when you need it
We’re experts, and we’re here to help. If you ever get stuck, contact our team by phone or live chat.
We’re experts, and we’re here to help. If you ever get stuck, contact our team by phone or live chat.
Whatever you’re working on, we’re here to help.
Visit our Help Centre to find quick answers and easy guides for everything we offer. Call us on 0345 450 2310 — we're ready to help you get started and support your business as it grows.
Or see how else you can contact us.
.co.uk Frequently Asked Questions
What does .co.uk mean for your business?
Registering a .co.uk domain shows you're proudly British and ready to serve UK customers. It's one of the most recognised and trusted extensions, both at home and abroad, so it helps build confidence with shoppers from the moment they see your web address. It's also often more affordable than a .com, making it a smart, budget-friendly choice for businesses of any size.
Who can buy a .co.uk domain?
Anyone can register a .co.uk domain. You don't need to live in the UK or have a registered UK business to buy one. Whether you're an established company, a sole trader or starting a new business, you can register a .co.uk domain for your brand.
What is the difference between .co.uk and .com?
.co.uk puts your business firmly in the UK, while .com has a more international feel. If most of your customers are in Britain, .co.uk makes that clear straight away. If you're selling around the world, .com can give your business a more global feel.
There's no right or wrong choice here. If the UK is your main market, .co.uk is a natural choice. And if you have ambitions beyond the UK, you can always register both. For more, check out our blog article: .com vs .co.uk - Which Domain is Best for Your British Business?
There's no right or wrong choice here. If the UK is your main market, .co.uk is a natural choice. And if you have ambitions beyond the UK, you can always register both. For more, check out our blog article: .com vs .co.uk - Which Domain is Best for Your British Business?
What is the difference between .co.uk and .uk?
.co.uk and .uk are both UK domain extensions, and anyone can register either one. The main difference is the name itself: .uk is shorter and newer, while .co.uk has been around for much longer and is a familiar choice for UK businesses. Because .uk is newer, there are often more names available. So if your first-choice .co.uk isn't available, it's worth checking the .uk version too.
Can I buy both a .com and .co.uk?
Yes, and it can be a smart move. Owning both helps protect your brand name, keep your branding consistent, and give customers another way to find you. If your ideal name is available across both, you can use one as your main website address and keep the other to protect your brand. Short, catchy names can get snapped up fast, so it's worth registering them while they're available.
What should I do if my desired .co.uk domain is not available?
Don't worry, you've still got options! Try a short variation of your name, add a relevant word, or check whether the same name is available with .uk. Our AI Domain Search tool shows what's available in real time and suggests alternatives if your first choice is already taken, helping you find a web address that still feels like your brand.
How much does a .co.uk domain cost?
You can register a .co.uk or .uk domain with 123 Reg for just £3.99 in your first year. That makes it an affordable way to get a recognised UK web address for your business.
Can I transfer my .co.uk domain from another registrar to 123 Reg?
Absolutely. You can transfer your .co.uk domain to 123 Reg, with free transfers available on select domains, including .co.uk and .uk. Once your transfer is complete, you can manage your domain alongside your other 123 Reg products, all in one place.
How do I get a .co.uk email address?
Easy — it only takes a few minutes. First, register a .co.uk domain name, like your-big-idea.co.uk. Once it's yours, add an email hosting plan, then connect your domain from your 123 Reg Control Panel. You can then create custom, professional addresses like hello@your-big-idea.co.uk.
You can also get a free domain for the first year when you sign up for an annual Website Builder, Managed WordPress Hosting, or Web Hosting plan. And if you need a hand along the way, our expert team is here to help.