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CryptCheck vs CDN77 TLS Test: catalog facts
CryptCheck	CDN77 TLS Test
Free Free to use in the browser.	Free Free to use in the browser.
Web	Web
Checks HTTPS, SMTP and XMPP servers Detailed protocol and cipher information	Lists all enabled SSL and TLS versions Highlights deprecated protocols in red
Interface is in French Little documentation on the home page	Page includes promotion for CDN77's CDN service Less detail than dedicated TLS audit tools
Web application	Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is 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.