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DNSlyticsDomainTools Whois Lookup
Freemium

Free tools on the website; premium website access, monitoring and the API are paid monthly…

 Freemium

Basic lookups are free, with deeper history and reverse WHOIS research on paid plans.

Web Web
  • Reverse IP, name server and mail server lookups in one place
  • More than ten years of historical DNS data
  • Domain ownership and IP address history in one lookup
  • Shows whether a domain is available or for sale
  • Page views and features are limited without a premium plan
  • IP and DNS data is refreshed every 14 days rather than live
  • Free tier is limited
  • Historical and reverse lookups are aimed at paying users
Web application, Hosted service Web application
Closed source Closed source
License not stated License not stated
No account needed Not stated if an account is needed
Needs internet Needs internet

Checked October 1, 2026

Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.