🇬🇧
.io
British Indian Ocean Territory
Country Code
About .io
Technically the ccTLD for the British Indian Ocean Territory, .io has become the go-to domain for tech startups and developer tools. Its popularity stems from the I/O (input/output) association in computing.
Intended Use
Tech startups, developer tools, and SaaS products.
Registration Restrictions
None; open to all registrants worldwide.
Quick Facts
- Registry
- Internet Computer Bureau Ltd (ICB)
- Introduced
- 1997
- Registered Domains
- 1.500.000
- WHOIS Server
- whois.nic.io
- Country
- 🇬🇧 United Kingdom
- DNSSEC
- Supported