Quick summary
- Term
- WHOIS
- Plain-English definition
- WHOIS is a traditional lookup system for domain registration information.
- Technical definition
- WHOIS is a traditional lookup system for domain registration information.
- Commonly confused with
- Related domain, DNS, registrar, API, or agent-infrastructure terms.
- Related terms
- RDAP, Registrant, Domain Privacy
Definition
WHOIS is a traditional lookup system for domain registration information.
Why it matters
WHOIS can help identify registration data, although privacy rules often hide personal details.