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Hardenize vs crt.sh: catalog facts
Hardenize	crt.sh
Freemium The public report is free; continuous monitoring is a paid service.	Free Free to use.
Web	Web
Free public configuration report for any domain Continuous certificate and perimeter monitoring for organisations	Search by domain, organization or fingerprint Shows certificates from public CT logs
Monitoring features are aimed at organisations rather than individuals Little public detail about pricing	Minimal interface aimed at technical users Only covers certificates that were logged
Web application, Hosted service	Web application
Closed source	Closed source
License not stated	License not stated
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

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