← Back to Help CentreUpdated Jan 2026
Domains
What is the difference between .co.uk and .uk?
Choose the best UK domain extension for your business.
4 min read
Quick answer
Choose the best UK domain extension for your business.
- Domains are your website address. Changes can take time to propagate, so allow up to 24 hours.
- If you update nameservers, keep your old host active until your site resolves correctly.
- For UK businesses, .co.uk and .uk are the most trusted extensions.
Key details
.co.uk is the classic UK business domain. It is trusted and widely recognized.
.uk is shorter and cleaner, and is now accepted by most UK customers.
If you can, secure both to protect your brand. Many customers use .co.uk for their main site and redirect .uk to it.
Quick checklist
- Verify nameservers or DNS records
- Keep WHOIS details up to date
- Enable auto-renew to avoid expiry
- Lock your domain after making changes
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