We're sending REST requests from our application. The remote service will be switching off all security protocols, except for TLS1.2 soon and we need to comply. We modified our code to make sure we use TLS1.2, however we received a message from the folks running the external service that we still use an older protocol (communication with them is a little slow). We are familiar with ways to use TLS1.2 in .Net (in which our app is made), but we would like to check which protocol we actually use. Is there a public Rest service out there that we could use to check protocol used for a request?
Optionally a public Rest service that would only accept TLS1.2 would do.