GF.dev TLS Cipher Suite Scanner vs testssl.sh: catalog facts
 GF.dev TLS Cipher Suite Scanner |  testssl.sh |
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Free Free to use in the browser. |
Free Free and open source. |
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Web |
macOS, Linux, Command line |
- Quick check of the negotiated TLS version and cipher suite
- Nothing to install
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- Tests any port, not only HTTPS on 443
- Checks protocols, ciphers and known cryptographic flaws
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- Reports the negotiated suite rather than a full list of supported ciphers
- Only checks servers reachable from the internet
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- Command-line output takes some TLS knowledge to interpret
- Intended for authorized testing of servers you run or may test
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Web application |
Downloadable app |
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Closed source |
Open source |
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License not stated |
License: GPL-2.0 |
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Not stated if an account is needed |
No account needed |
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Needs internet |
Needs internet |
Checked September 23, 2026 | Checked September 23, 2026 |
Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.
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