.biz domain lookup
Generic top-level extension (gTLD).
Generic extension intended for businesses.
Technical details
- Type
- gTLD
- Registry
- Registry Services, LLC
- WHOIS server (port 43)
- whois.nic.biz
- RDAP endpoint
- https://rdap.nic.biz/
- Added to the root zone
- Jun 26, 2001
- IANA record last changed
- Mar 10, 2026
IANA data: Oct 6, 2026
What does the registry publish?
Based on the record of google.biz (RDAP, Oct 6, 2026):
- Registrar: published
- Creation date: published
- Last update: published
- Expiry date: published
- Status codes: published
- Name servers: published
- DNSSEC: published
- Registrant: published
- Abuse contact: published
The registrant's personal data is redacted.
Status codes in the sample record
- clientTransferProhibited
- clientUpdateProhibited
- clientDeleteProhibited
What happens when a domain expires?
ICANN rules apply to gTLDs: after expiry there is a 0–45 day renewal grace period depending on the registrar, then a 30-day redemption period and a 5-day pending delete period; after that the name is released.
Questions about .biz
›What is the .biz whois server?
The port 43 WHOIS server for .biz is whois.nic.biz.
›Does .biz support RDAP?
Yes. RDAP endpoint: https://rdap.nic.biz/
›How do I find when a .biz domain expires?
Type the domain in the box above; if the registry publishes the expiry date, the whois card shows it along with the days left.
›Can I see who owns a .biz domain?
Usually not: according to our sample check this registry redacts the registrant's personal data. The registrar and dates are still visible.