SSL/TLS Deep Inspector
Grade live TLS handshakes with chain trust, protocol, key strength, and expiry checks
About this tool
Inspect TLS handshakes for any hostname. Chain trust, protocol, key size, SAN match, and expiry with an A–F grade. Free, no signup. SSL/TLS Deep Inspector runs in the browser on DevTools. There is no signup, and your input stays on this device unless the tool explicitly performs a live network lookup.
What this tool does not do
- SSL/TLS Deep Inspector is a free in-browser utility, not a hosted API. It does not keep server-side history and is not a substitute for production verification in your own stack.
How do I use this tool?
How do I use SSL/TLS Deep Inspector?
Open SSL/TLS Deep Inspector, enter or paste your input, and copy the result. The page works without an account.
Related guides
How to Use the SSL/TLS Deep Inspector (A–F Grading)
Run a live TLS handshake from DevTools backend, interpret the A–F grade, and fix chain, expiry, and protocol findings. Work the findings from expiry and chain.
Why Your TLS Certificate Chain Breaks (and How to Fix It)
A field guide to 'unable to get local issuer certificate' and friends. What a certificate chain is, why order and intermediates matter, and how to find the broken link in a PEM bundle.
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