The "Healthcheck" is a self-test website provided by the running application. It shows the connections to the TF website, the TF servers, the status of possible proxy servers and connected card readers.
Reading the results of the "HealthCheck" is quite simple.
In general, all tests should be "true"(true) - exception: the proxy test; it is only true if a proxy server is detected in the system's network settings.
The "NbrCrDetected" specification represents the number of connected smartcard readers.