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CryptCheck vs GF.dev TLS Cipher Suite Scanner: catalog facts
CryptCheck	GF.dev TLS Cipher Suite Scanner
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	Quick check of the negotiated TLS version and cipher suite Nothing to install
Interface is in French Little documentation on the home page	Reports the negotiated suite rather than a full list of supported ciphers Only checks 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	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.