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Web Checkhttpx
Free

Free and open source.

 Free

The open-source software is available without a license fee. Hosting, hardware and…

Web, Self-hosted Windows, macOS, Linux, Command line
  • Many checks combined in one report
  • Can be self-hosted with Docker
  • Collects response information from lists of hosts or URLs.
  • Running it yourself takes some setup
  • Only looks at publicly available information
  • This is the Go probing tool, not the Python library with the same name.
Self-hosted Downloadable app
Open source Open source
License not stated License: MIT
No account needed Not stated if an account is needed
Not stated if it works offline 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.