.io WHOIS Lookup

Type

Country-code TLD (ccTLD) · British Indian Ocean Territory

Registry operator

Identity Digital

Who can register

None — no local presence required.

In use since

1997

RDAP server

https://rdap.identitydigital.services/rdap/ not in IANA’s list

WHOIS server (port 43)

whois.nic.io

Registry model

Thick — contact data in the registry record

After expiry

Set by the registry’s own policy

The country code of the British Indian Ocean Territory, used almost like a generic extension by software companies and developer tools because of its reading as input/output. Identity Digital runs the registry. .io is not in IANA's RDAP list; this service reads the record straight from Identity Digital's RDAP server.

Registrar

Registry Operator acts as Registrar (9999)

Created

15.09.2003

Expires

01.05.2027 · in 5 months

Status codes

server delete prohibitedserver transfer prohibitedserver update prohibited

Nameservers

b0.nic.ioa2.nic.ioa0.nic.ioc0.nic.io

DNSSEC

Unsigned

Look it up live: nic.io

Country-code extensions are not bound by ICANN's generic-TLD rules: Identity Digital decides which fields are published and when an expired name is deleted. The result page shows whatever the registry's RDAP server publishes.

Next to the registration data you get live DNS, SPF/DMARC, the TLS certificate, the HTTPS response and the abuse history of the hosting addresses on ip-db.com. Type just a name (e.g. example) and .io is added; the same data is available from the JSON API.

All supported extensions →