What Is WHOIS?
WHOIS is a long-running way to query domain registration information such as registrar, status dates and contact data where available.
Updated 2026-08-08What WHOIS can show
WHOIS data may include registrar, creation date, expiration date, nameservers, domain status codes and registry identifiers.
Personal contact fields are often redacted or replaced by privacy service details.
Why results vary
Different registries and registrars publish different fields. Privacy law and registry policy affect how much information is visible.
Modern replacement
RDAP provides registration data over HTTPS with structured responses, which makes it easier for tools to parse reliably.
Common questions
Quick answers
Can WHOIS prove who owns a domain?
It can provide registration context, but privacy redaction and registrar policy mean it may not identify a real-world owner.