Compare software

DNS SpyDNSlytics
Freemium

Monitoring is paid with a 7-day free trial; some one-off tools are free.

 Freemium

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

Web Web
  • Record-level change alerts checked from multiple locations
  • Domain and SSL expiry tracking in one place
  • Reverse IP, name server and mail server lookups in one place
  • More than ten years of historical DNS data
  • Continuous monitoring requires a paid plan
  • Hosted service only
  • Page views and features are limited without a premium plan
  • IP and DNS data is refreshed every 14 days rather than live
Hosted service Web application, Hosted service
Closed source Closed source
License not stated License not stated
Account needed No account needed
Needs internet Needs internet

Checked October 2, 2026

Checked October 1, 2026

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