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ImmuniWeb SSL Security Test vs SSL Shopper SSL Checker: catalog facts
ImmuniWeb SSL Security Test	SSL Shopper SSL Checker
Free The test is free; ImmuniWeb also sells commercial security services.	Free Free to use; the site also sells certificates.
Web	Web
Tests email servers as well as web servers Compliance checks for PCI DSS, HIPAA and NIST	Quick check of chain, hostname match and expiry Optional expiry reminders
Provided as is without warranty Only tests servers reachable from the internet	Public hostnames only Results may be cached for up to a day
Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account 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.