WHOIS Lookup - Domain Info & Registrar

Look up domain registration details: registrar, registration and expiry dates, name servers, and status. Free online WHOIS tool.

WHOIS Lookup - Domain Registration & Owner Information

WHOIS provides public registration data for domain names including registrar, registration date and name servers.

Enter any domain name to retrieve its public WHOIS record. The tool queries RDAP (Registration Data Access Protocol), the modern replacement for traditional WHOIS, and returns structured data including registrar name, creation date, expiration date, last update, name servers, and domain status codes.

WHOIS data is useful for due diligence when purchasing a domain, investigating suspicious websites, verifying business legitimacy, and checking when a domain expires. Domains approaching expiration may become available for registration - or may auto-renew, depending on the registrar's policies.

Many domain registrations now use WHOIS privacy services that replace the registrant's personal contact information with proxy details. This protects the owner from spam and unwanted contact but makes it harder to identify who controls a domain. The registrar and technical data (name servers, status codes) remain visible regardless of privacy settings.

Key status codes to understand: 'clientTransferProhibited' means the domain is locked against unauthorized transfers, 'serverHold' means the registry has suspended the domain, and 'redemptionPeriod' means the domain expired and is in a recovery window. For checking domain availability, use our Domain Checker.

How the WHOIS Lookup Works

  1. 01Enter a domain name (e.g., example.com)
  2. 02The tool queries public WHOIS databases for registration data
  3. 03View registrar, creation date, expiry date, and name servers
  4. 04Check domain status codes to understand its current state

Reading WHOIS Data

WHOIS records show who registered a domain, when it was created, and when it expires. Many registrars now offer WHOIS privacy, which hides the registrant's personal information behind proxy contact details. Key status codes to know: 'clientTransferProhibited' means the domain is locked against unauthorized transfers, and 'redemptionPeriod' means the domain recently expired and can still be recovered by the original owner.

When to Use the WHOIS Lookup

Use WHOIS lookup when researching domain ownership for business due diligence, checking when a domain expires (to register it after expiration), investigating suspicious or phishing websites, verifying the legitimacy of a business by checking its domain age, or finding the registrar and name servers for technical troubleshooting.

Common Use Cases

  • Research domain ownership and registration details for due diligence
  • Check domain expiration dates to plan registration of expiring domains Domain Checker - Check Domain Availability Instantly
  • Investigate suspicious websites by checking domain age and registrar
  • Find name server information for DNS troubleshooting
  • Verify business legitimacy by checking how long their domain has been registered

Expert Tips

  • Domain age is a trust signal - established domains (5+ years) are generally more trustworthy than newly registered ones. Scam sites typically use domains registered days or weeks ago.
  • Check the expiration date of domains you rely on. If a partner's or client's domain is about to expire, alert them - accidental expiration can cause significant business disruption.
  • Name servers reveal the hosting provider. If a site claims to be a major company but is hosted on a free or budget provider, that is a red flag.
  • The 'redemptionPeriod' status means a domain recently expired. The original owner can still recover it, but if they do not, it will become available for public registration after the pending-delete phase.

Frequently Asked Questions

Why is the registrant information hidden?→
Many registrars offer WHOIS privacy (domain privacy) that replaces the registrant's personal contact details with proxy information. This protects the owner from spam and unwanted solicitation. The registrar and technical details (name servers, status codes) remain visible.
What do WHOIS status codes mean?→
Common status codes: 'clientTransferProhibited' = domain is locked against unauthorized transfers. 'active' or 'ok' = domain is functioning normally. 'redemptionPeriod' = domain expired recently and can be recovered by the original owner. 'pendingDelete' = domain will be released for public registration soon.
Can I find out who owns a domain?→
Only if the registrant has not enabled WHOIS privacy. GDPR regulations have further restricted the availability of personal WHOIS data for domains in many registries. Registrar name, dates, and technical data are typically still visible.
What is RDAP and how is it different from WHOIS?→
RDAP (Registration Data Access Protocol) is the modern replacement for the WHOIS protocol. It returns structured JSON data instead of unformatted text, supports standardized access control, and is designed to be compatible with GDPR. Most registries now serve RDAP alongside or instead of traditional WHOIS.

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