Free WHOIS Lookup & Domain Information Tool

Discover domain registration details online. Check domain registrar information, nameservers, DNS records, expiration dates, and owner information with our comprehensive WHOIS and RDAP lookup tool. Instant results, completely free.

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No credit card required • Instant results

Registrar Info

View domain registrar, registrant details, and registration status

Date Information

Check creation, update, and expiration dates for any domain

Nameservers

Identify authoritative nameservers and DNS configuration

DNS Records

View MX, SPF, DMARC, and other DNS records with IP geolocation

What Information Does WHOIS Lookup Provide?

Registration Details

  • Domain registrar information
  • Registrant contact details (if public)
  • Creation and expiration dates
  • Last updated timestamp

Technical Information

  • Authoritative nameservers
  • DNS records (MX, SPF, DMARC, TXT)
  • IP address and geolocation
  • WHOIS/RDAP data source

About WHOIS & RDAP

WHOIS is a protocol for querying domain registration databases. Our tool uses both traditional WHOIS and the modern RDAP (Registration Data Access Protocol) to provide accurate, up-to-date domain information. This is essential for domain research, investigating ownership, checking availability, and verifying DNS configuration.

WHOIS lookup questions

What does a WHOIS lookup show?

The registrar, registration and expiry dates, nameservers and domain status for a domain. Owner contact details are usually redacted for privacy.

What is the difference between WHOIS and RDAP?

RDAP is the modern replacement for WHOIS. It returns structured data over HTTPS, and many registries now publish through RDAP first. We query both.

Why is the owner information hidden?

Most registrars redact personal contact details under privacy rules such as GDPR, or because the owner uses a privacy service. The registrar can usually forward a message to the owner.

How can WHOIS help with security?

A very recently registered domain is a common sign of phishing, and checking your own domain's expiry date and status helps you avoid losing it to an accidental lapse.

Is the WHOIS lookup free?

Yes, with no registration.

This is one check. A full scan runs them all.

Free

The WHOIS Lookup covers one area. A full scan runs every check on the same site in one go, so nothing it does not reach goes unnoticed.

Covered by this check

  • Domain registrar information
  • Registration & expiration dates
  • Nameserver identification
  • DNS records (MX, SPF, DMARC)
  • IP geolocation data

Added by a full scan

  • SSL/TLS certificate validation
  • Security headers analysis
  • WordPress vulnerability scanning
  • Malware & script detection
  • DNS security (DNSSEC, CAA)
  • Domain reputation analysis
  • Certificate transparency logs
  • And 6+ more security checks
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Want it checked automatically? A free account rescans one site every week and emails you new findings. No credit card.

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