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.io

Register a .io domain

The technology sector's favourite short extension — and a country-code TLD whose long-term status is genuinely worth understanding before you build a brand on it.

Extension type
Country-code (ccTLD)
Who can register
Open to anyone
Registry
Internet Computer Bureau
Renews at
CHF 108.00 / year

Check a .io name

.io pricing

.io prices by registration term
Term1 year2 years3 years4 years5 years
Registration

For a name nobody currently holds.

CHF 108.00CHF 156.00CHF 233.00CHF 242.00CHF 302.00
Renewal

Every term after that. This is the number that matters most, so it sits on the same screen as the first one.

CHF 108.00CHF 156.00CHF 233.00CHF 242.00CHF 302.00
Transfer in

Moving an existing name to us. Adds a year to the term rather than restarting it.

CHF 108.00one-offNot offeredNot offeredNot offeredNot offered
Restore

Recovering a name after it lapsed into redemption. Shown deliberately: it is the expensive one.

CHF 109.00one-offNot offeredNot offeredNot offeredNot offered

Each figure is the total for that whole term, resolved live from the same pricing engine that charges your cart, so this page cannot advertise an amount checkout will not honour. Only the terms this registry actually sells are shown; an em-dash means that term is not on offer. A crossed-out price is a standing price a running promotion undercuts. Premium names are priced individually — search the exact name to see its own quote.

Before you register .io

What the price includes

Every .io amount on this page is resolved by the same pricing engine that charges your cart, at the moment the page is built. There is no separate ICANN fee, agency fee or surcharge added later — the figure you see is the figure you pay, in the currency shown.

Premium and reserved names

Some names are classed as premium by the registry and priced individually, usually at the premium rate every year rather than only the first. Search the exact name to see its own quote. If a name's premium status or price changes between your quote and your purchase, the quote is invalidated rather than quietly repriced.

Renewal is not automatic unless you switch it on

Auto-renew is off unless you enable it, and enabling it sets a flag at the registry rather than scheduling a charge here. We email the registrant address before a name expires, so keep a monitored address on the record. If a .io name does lapse, restoring it costs considerably more than renewing it would have — the restore price is in the table above.

Transfers

Transferring .io to us needs the AuthInfo (EPP) code from your current registrar, which they are obliged to give you on request. Where the registry operates a waiting period before a name may move — ICANN imposes one on generic extensions — it is set out in the facts above. That is registry policy, not ours, and we cannot waive it.

Eligibility

Open to anyone, anywhere

Registry: Internet Computer Bureau, owned by Identity Digital.

  • No residency, entity or documentation requirement.

  • Registration is immediate when the name is free.

  • As a country-code TLD, .io is not bound by ICANN's gTLD consensus policies — the registry sets its own rules, and they can differ from .com's.

Why .io is popular

.io became the technology sector's default second choice for an obvious reason: two letters that read as input/output to exactly the audience developer products are sold to, and an inventory where short, memorable names were still available long after .com's had gone. It is a genuinely good extension for a product, an API or a developer tool.

It is also a country-code TLD rather than a generic one, and that distinction is more than trivia. Country-code registries set their own policies. ICANN's gTLD consensus policies — the 60-day transfer lock, the standard expiry sequence, the uniform dispute resolution procedure — do not automatically apply to .io the way they do to .com. In practice Identity Digital, which owns the registry operator, runs .io close to industry norms, but 'close to' is not 'identical', so ask us rather than assuming.

The Chagos question, stated plainly

The 'IO' in .io is the ISO country code for the British Indian Ocean Territory. In 2025 the United Kingdom and Mauritius signed a treaty transferring sovereignty over the Chagos Archipelago to Mauritius. If the underlying country code is eventually withdrawn, the country-code TLD attached to it would in principle be subject to retirement.

What is actually true today: nothing has changed for .io registrations. Names resolve, register, renew and transfer exactly as before. IANA's established process for retiring a country-code TLD runs over a phase-out of at least five years, and there is precedent for codes persisting long after the political facts that created them — anything beyond that is speculation, and we are not going to speculate at you on a page where we are also asking for money.

Our position is simply that you should know. For a product with a normal commercial horizon this is not a reason to avoid .io. For a name you intend to be the permanent identity of an institution, a gTLD is the more conservative choice, and holding the matching .com alongside your .io costs little and keeps the option open.

Pricing and renewal

.io has always been priced above .com at wholesale, and the renewal is not a discounted introductory rate that jumps later — what you see above for renewal is what renewal costs. All four operations are priced live from the same engine that charges your cart.

The restore price deserves a look before you need it. Recovering a .io from redemption is expensive across the industry, and the redemption period is the point at which the name has already stopped resolving. Multi-year registration and a billing contact somebody actually reads are the two things that reliably prevent this.

Terms and lifecycle

What holding a .io actually commits you to

Term
One to ten years, renewable.
If you miss the renewal
Identity Digital runs an industry-standard sequence: after the renewal grace period the name enters a 30-day redemption period where it can still be recovered for a restore fee, followed by a 5-day hold before it is released for registration.
Country-code, not generic
ICANN's gTLD consensus policies — including the 60-day transfer lock and the standard dispute process — do not automatically apply. Ask us before you assume a .com rule carries over.
Long-term status
The UK and Mauritius signed a treaty in 2025 transferring sovereignty over the Chagos Archipelago, the territory behind the 'IO' country code. Nothing changes for existing registrations today, and IANA's process for retiring a country-code TLD runs over a minimum five-year phase-out — but the uncertainty is real and we would rather state it than let you find out from a headline.

Fit

Who .io is for

  • Developer tools and technology startups

    Two letters that read as input/output to the audience these products are sold to, with short names still available.

  • Products, not permanent institutions

    For a product with a five-year horizon the registry question is noise. For something you intend to still be operating in twenty years, it is worth weighing.

  • Best held alongside a .com

    The usual pattern, and it is a sound one: build on .io, hold the .com, and you have a migration path if you ever want one.

Hosting for the product behind the domain

Controlled Medusa Preview or WordPress Beta onboarding on our Kubernetes platform, with the domain attached after service setup.

See hosting

Frequently asked questions

Is .io going to be discontinued?

Nothing has changed for .io registrations today — names register, renew, transfer and resolve normally. The open question is that the UK and Mauritius signed a treaty in 2025 transferring sovereignty over the territory behind the 'IO' country code. If a country-code TLD is ever retired, IANA's process runs over a phase-out of at least five years. For a product this is not a reason to avoid .io; for a permanent institutional identity, a gTLD is more conservative.

Who runs the .io registry?

Internet Computer Bureau, a UK company owned by Identity Digital, a US registry operator that also runs a large portfolio of other extensions.

Does the 60-day transfer lock apply to .io?

Not automatically. .io is a country-code TLD, so ICANN's gTLD consensus policies do not apply to it by default and the registry sets its own transfer rules. Ask us about a specific name before you plan a migration around a date.

What happens if my .io expires?

After the renewal grace period the name enters a 30-day redemption period during which it can still be recovered for a restore fee, then a 5-day hold, after which it is released for registration. Restoring a .io is expensive — renewing on time is much cheaper.

Need help choosing a .io name?

Review availability above, or ask us to check the extension, eligibility, and lifecycle fit for your project.