.io
A country-code extension in our tech group, run by Identity Digital. £32.99 for the first year, £50.99 a year to keep, £491.90 over ten years — transfers in cost £50.99.
The renewal is close to the first-year price, so a short term costs you nothing in the long run.
.io facts
Assigned to the British Indian Ocean Territory but adopted worldwide by software companies, largely because “io” reads as input/output.
Why people choose it
It has become shorthand for a technical product, and short names are still findable. Expect a higher renewal than a generic extension.
Typical uses
Developer tools, APIs, SaaS products, game studios and technical blogs.
Policies & protection
What the registry allows, requires and protects.
Registry & syntax
Who runs the zone, and what a valid name looks like.
.io questions, answered
Who can register a .io domain?
Anyone, anywhere. The registry places no restrictions on who may hold one.
What does .io cost to keep?
First year £32.99, renewals £50.99 a year, and £491.90 for ten years in total. The flat renewal means a one-year term costs you nothing extra over time.
Can I move a .io domain to URSY later?
Yes. A transfer costs £50.99 and, where the registry allows it, adds a year to the expiry date. Your DNS records travel with the domain so nothing goes offline.
Does .io support international characters?
Yes — accented and non-Latin names are supported. Type the name as you write it and our converter shows the punycode form the registry stores.
Is WHOIS privacy included?
Yes, free for as long as you hold the domain, on every extension that permits it. Your name and address are replaced by a privacy contact in the public record.
Compare with neighbours
See what other registrars charge
Fourteen providers, the same extension, side by side — registration, renewal, transfer, privacy and the ten-year total.
PRICES EX-VAT · REGISTRY DATA REVIEWED MONTHLY · SOURCES: THE IANA ROOT DATABASE AND THE REGISTRY OPERATOR