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CryptCheck vs ImmuniWeb SSL Security Test: catalog facts
CryptCheck	ImmuniWeb SSL Security Test
Free Free to use in the browser.	Free The test is free; ImmuniWeb also sells commercial security services.
Web	Web
Checks HTTPS, SMTP and XMPP servers Detailed protocol and cipher information	Tests email servers as well as web servers Compliance checks for PCI DSS, HIPAA and NIST
Interface is in French Little documentation on the home page	Provided as is without warranty Only tests servers reachable from the internet
Web application	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.