.bio
.bio is a generic extension, run by Identity Digital Limited since 2014. Anyone can register a .bio name through a registrar that sells it.
| Type | Generic |
|---|---|
| Registry operator | Identity Digital Limited |
| Who can register | Anyone |
| In the root zone since | 2 June 2014 |
| DNSSEC | Signed |
| RDAP server | https://rdap.identitydigital.services/rdap/ |
| WHOIS server | None listed |
| IANA record | iana.org/domains/root/db/bio |
Registrars that sell .bio
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All 24 registrars for .bio. Other registrars may sell it too.
Look up a .bio domain
The .bio registry publishes registration data over RDAP. The free domain report reads it and shows a .bio domain's registrar, dates, status and DNS in one place. For the raw record, use the WHOIS lookup.
More extensions from Identity Digital Limited
| .llc | Generic · 2018 |
| .promo | Generic · 2015 |
| .watches | Generic · 2015 |
| .pet | Generic · 2015 |
| .bet | Generic · 2015 |
| .ski | Generic · 2015 |
| .poker | Generic · 2014 |
| .lgbt | Generic · 2014 |
New to extensions? The guide to how domain extensions work covers generic, country-code and brand extensions. For who sells extensions in general, see the list of domain registrars.
Sources: the IANA root zone database and the ICANN list of generic extensions (refreshed 2026-10-24). Something out of date? Tell us.
Frequently asked questions
Who runs the .bio extension?
Identity Digital Limited is the registry operator for .bio. The registry keeps the list of every .bio name; registrars sell the names to the public.
Can anyone register a .bio domain?
Yes. Anyone can register a .bio name through a registrar that sells it.
When was .bio created?
.bio was added to the DNS root zone on 2 June 2014, according to IANA.
How do I look up who owns a .bio domain?
The .bio registry publishes registration data over RDAP at https://rdap.identitydigital.services/rdap/. The free domain report on lemon.domains reads it for you and shows the registrar, dates and status.
Is .bio signed with DNSSEC?
Yes. The .bio zone is signed, so a .bio domain can turn on DNSSEC once its registrar adds a DS record.