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ImmuniWeb SSL Security Test vs SSL Labs Server Test: catalog facts
ImmuniWeb SSL Security Test	SSL Labs Server Test
Free The test is free; ImmuniWeb also sells commercial security services.	Free Free online service from Qualys.
Web	Web
Tests email servers as well as web servers Compliance checks for PCI DSS, HIPAA and NIST	Detailed coverage of protocols, ciphers and vulnerabilities Letter grade that is easy to compare
Provided as is without warranty Only tests servers reachable from the internet	Public servers only A full test takes a while to run
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.