How to use it
- 1
Enter hostname and port.
- 2
Run the TLS check.
- 3
Review negotiated protocol, cipher, and certificate signals.
What the tool can do
- Shows negotiated TLS version and cipher suite.
- Shows ALPN negotiated protocol, including h2 signal.
- Connects TLS signals with baseline certificate health.
Common use cases
- Understand which TLS version is actually negotiated for a site.
- Find missing HTTP/2 ALPN signal.
- Prepare TLS health for production-readiness auditing.
How it works inside
The result is based on one handshake with a modern client context.
A full TLS matrix later requires a separate scanner worker.
Questions and answers
Why no full cipher list?
This is a bounded tool. Full cipher enumeration belongs to a separate security scanner to avoid heavy synchronous checks.
Is HTTP/2 checked?
The tool shows the ALPN negotiated protocol when the server returns it.