SSLyze
SSLyze is a fast Python library and CLI that analyses the TLS configuration of a server.
Legal & ethical use. Use this tool only on systems, networks and data that you own or have explicit written permission to test. Unauthorised access or scanning can break computer-misuse laws (for example Pakistan's Prevention of Electronic Crimes Act, 2016, and equivalents elsewhere). Practise in your own lab or in authorised environments such as CTFs.
What it is used for
- Automate TLS checks in CI
Key features
- CLI and Python API
- JSON output
Installation
pip install sslyze
Beginner usage guide
Scan your own server and parse the JSON output in a pipeline.
Example commands
Run these only against your own lab or authorised targets. Placeholder addresses such as 192.0.2.x are documentation ranges.
Scan a host
sslyze example.comRuns the default scan commands against the host.
References
Source verification
Last reviewed: 2026-10-27
Links checked over HTTP: 2026-10-27 07:51 UTC — official: 200, docs: 200, repo: 200
Commands were written from the official documentation and have not been executed on this site; test them in your lab.