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Hardenize vs SSLyze: catalog facts
Hardenize	SSLyze
Freemium The public report is free; continuous monitoring is a paid service.	Free Free and open source.
Web	Command line
Free public configuration report for any domain Continuous certificate and perimeter monitoring for organisations	Fast TLS configuration scanning from the command line JSON output suited to automation
Monitoring features are aimed at organisations rather than individuals Little public detail about pricing	No graphical interface Output assumes some knowledge of TLS
Web application, Hosted service	Downloadable app
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.