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HetrixToolsTianji
Freemium

Free tier with 15 uptime and 32 blacklist monitors; paid plans add more.

 Free

Free and open source. Hosting, hardware and any external services are separate.

Web Self-hosted
  • Generous free tier for uptime and blacklist monitoring
  • Checks from up to 12 locations
  • Provides several monitoring views in one application
  • Can be hosted on your own infrastructure
  • Hosted only, with no self-hosted option
  • Requires an account
  • Requires deployment and configuration of data collection.
Web application, Hosted service Self-hosted
Closed source Open source
License not stated License: Apache-2.0
Account needed Not stated if an account is needed
Needs internet Not stated if it works offline

Checked September 23, 2026

Checked September 22, 2026

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