What it is
Replays the handshake the way a panel of real clients would perform it, covering Chrome, Firefox, Safari, Edge, OpenSSL, Java, iOS and Android across a spread of versions. For each, it reports the protocol and cipher that would be agreed, or that the client cannot connect at all.
Why it matters
Tightening a TLS configuration always locks somebody out, and this shows who. Worth running before you drop an old protocol version, and again afterwards to confirm you dropped only what you meant to.
How this assessment works
Skopeon Labs queries public infrastructure signals and authoritative network protocols directly from external sensor nodes. All evaluations are completely non-invasive and agentless, assessing observable configurations without sending malicious payloads or disrupting service.
Operational Scope & Limitations
This check evaluates public perimeter responses observable at the time of inquiry. Endpoints protected behind third-party reverse proxies or CDNs reflect the edge configuration of the proxy layer.