.biz
.biz is a generic extension with registration rules, run by Registry Services, LLC since 2001. Anyone can register a .biz name through a registrar that sells it.
| Type | Generic, restricted |
|---|---|
| Registry operator | Registry Services, LLC |
| Who can register | Anyone |
| In the root zone since | 25 September 2001 |
| DNSSEC | Signed |
| RDAP server | https://rdap.nic.biz/ |
| WHOIS server | whois.nic.biz |
| IANA record | iana.org/domains/root/db/biz |
Registrars that sell .biz
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All 28 registrars for .biz. Other registrars may sell it too.
Look up a .biz domain
The .biz registry publishes registration data over RDAP. The free domain report reads it and shows a .biz domain's registrar, dates, status and DNS in one place. For the raw record, use the WHOIS lookup.
More extensions from Registry Services, LLC
| .gay | Generic · 2019 |
| .boston | Generic · 2016 |
| .dds | Generic · 2016 |
| .health | Generic · 2016 |
| .compare | Generic · 2016 |
| .select | Generic · 2016 |
| .vip | Generic · 2015 |
| .law | Generic · 2015 |
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 Something out of date?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 .biz extension?
Registry Services, LLC is the registry operator for .biz. The registry keeps the list of every .biz name; registrars sell the names to the public.
Can anyone register a .biz domain?
Yes. Anyone can register a .biz name through a registrar that sells it.
When was .biz created?
.biz was added to the DNS root zone on 25 September 2001, according to IANA.
How do I look up who owns a .biz domain?
The .biz registry publishes registration data over RDAP at https://rdap.nic.biz/ and over WHOIS at whois.nic.biz. The free domain report on lemon.domains reads it for you and shows the registrar, dates and status.
Is .biz signed with DNSSEC?
Yes. The .biz zone is signed, so a .biz domain can turn on DNSSEC once its registrar adds a DS record.