Register a .io domain
$90 a year, paid in crypto, with no identity attached and DNS included.
About .io
Formally the country-code domain for the British Indian Ocean Territory, a UK overseas territory with no permanent population. Software companies adopted it wholesale because "I/O" reads as input/output, and the pun proved sticky enough that the technical meaning now overshadows the geographic one almost entirely. It is the most recognisable technical ending after .com, though its long-term footing rests on a territorial administration rather than a commercial one.
Suits: Developer products, APIs, and startups.
It is one of 31 endings we sell in the country-code endings group.
What a .io costs
$90 a year. One flat shelf price in dollars, drawn from your credit balance — there is no first-year discount that triples at renewal, and no fee for the privacy, because the name is registered in our name by default rather than as a paid extra.
The catalog lands on 5 price bands, and .io sits in the $90 one alongside 148 other endings. 142 endings are cheaper and 97 cost more.
| Term | Price | Per year |
|---|---|---|
| 1 year | $90 | $90 |
| 2 years | $180 | $90 |
| 3 years | $270 | $90 |
| 5 years | $450 | $90 |
| 10 years | $900 | $90 |
DNS on the name is included and never billed. This registry supports DNSSEC.
Registering a .io anonymously
Offbook never asks who you are. Opening an account takes an email address you invent, a password and an invite code — no legal name, no address, no phone number, no card and no identity documents. Funding is crypto, so no bank or processor is in a position to demand them.
The .io is then held in our name rather than yours, so the public record has nothing of yours to show. You keep operational control of the name — DNS, renewals and where it points — from the desk or through the API. Read more on anonymous domain registration.
If .io is taken
Cheaper in the same category
Similar endings at a similar price
Nothing on file. Nothing to leak.
An email you invent, an invite code, and crypto. That is the entire relationship.