. io is the country code top -level domain ( ccTLD) of the British Indian Ocean Territory. It exists since the 16th September 1997 and is administered by the IO Top Level Domain Registry, which is part of Cable & Wireless.
Total must be between three and 63 characters and contain only alphanumeric characters a. Io domain. Any natural or legal person is entitled to register a. Io- domain, a local resident or established are not required. Only addresses below a second-level domain such as. Com.io. Org.io. Net.io. Gov.io. Mil.io or. Edu.io are reserved inhabitants of the territory. Since "IO " is used as an abbreviation for input and output, a comparably high importance of the top -level domain. Io to. One of the most expensive ever become known domains include food.io, doc.io and aud.io for audio.