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Hardenize vs testssl.sh: catalog facts
Hardenize	testssl.sh
Freemium The public report is free; continuous monitoring is a paid service.	Free Free and open source.
Web	macOS, Linux, Command line
Free public configuration report for any domain Continuous certificate and perimeter monitoring for organisations	Tests any port, not only HTTPS on 443 Checks protocols, ciphers and known cryptographic flaws
Monitoring features are aimed at organisations rather than individuals Little public detail about pricing	Command-line output takes some TLS knowledge to interpret Intended for authorized testing of servers you run or may test
Web application, Hosted service	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0
Not stated if an account is needed	No account needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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