.io domains
The tech and developer favourite
.io is the country code of the British Indian Ocean Territory. Developers adopted it because “I/O” means input/output, and it remains common for SaaS, APIs and games.
Who can register?
Open to anyone worldwide.
Registry: Identity Digital (for the British Indian Ocean Territory)
Best for
- SaaS and APIs
- Developer platforms
- Browser games
Finding a good .io name
.io has no public RDAP service, so availability is checked through the registry WHOIS. Renewal prices are typically higher than .com.
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