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Who.isDNSlytics
Freemium

Lookups are free; domain history reports and monitoring are paid services.

 Freemium

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

Web Web
  • WHOIS, RDAP, DNS and IP lookups in one site
  • Reverse nameserver lookup
  • Reverse IP, name server and mail server lookups in one place
  • More than ten years of historical DNS data
  • Full domain history requires a paid report
  • Monitoring is a premium service
  • Page views and features are limited without a premium plan
  • IP and DNS data is refreshed every 14 days rather than live
Web application, Hosted service Web application, Hosted service
Closed source Closed source
License not stated License not stated
Not stated if an account is needed No account needed
Needs internet Needs internet

Checked September 23, 2026

Checked October 1, 2026

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