Domains · .io
Register a .io domain
The technology industry's house style.
To register
£66.99
first year
To renew
£66.99
every year after
No introductory rate, so the renewal is not a surprise. Priced live, and inclusive.
Who a .io suits
Software, developer tools, SaaS and anything pitched at a technical audience.
- Instantly legible to a technical audience as "a product, probably software".
- Short, and short names are still findable.
The honest drawback
Two things. It costs noticeably more than the ordinary endings, and it is a country-code ending whose long-term arrangements have been the subject of international discussion. Neither is a reason to avoid it for a project, but for the name a whole business depends on for the next decade, a .com or .co.uk is the more boring and more durable choice.
Who can register one
Open to anyone. The registry behind .io is Identity Digital.
What a .io renewal costs elsewhere
Ongoing renewal prices, not first-year offers. Including VAT.
| Registrar | Renewal, per year |
|---|---|
| Centaur | £66.99 |
Competitor figures verified 2026-08-08. Where one of them is cheaper than us, the comparison pages say so.
Consider instead
Not sure of the name yet?
The name generators are free and check availability as they go, so you can go from a blank page to a registered address in one sitting.
Other endings
- .com · The one people type without thinking.
- .co.uk · The British default, and still the one UK customers trust.
- .uk · Shorter, newer, and usually free beside the .co.uk.
- .org · Reads as a cause rather than a company.
- .net · The old fallback when the .com has gone.
- .shop · Says what you do before anyone clicks.
- .online · Broad, available, and plain about what it is.