DigiCert SSL Installation Checker vs testssl.sh: catalog facts
 DigiCert SSL Installation Checker |  testssl.sh |
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Free Free to use; DigiCert sells certificates. |
Free Free and open source. |
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Web |
macOS, Linux, Command line |
- Diagnoses installation and chain problems
- Related CSR and S/MIME tools on the same site
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- Tests any port, not only HTTPS on 443
- Checks protocols, ciphers and known cryptographic flaws
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- Focused on installation rather than a full protocol audit
- Surrounded by a certificate vendor's sales pages
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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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