We are stubborn on vision. We are flexible on details — Jeff Bezos — What is Blackbox exporter? The Prometheus Blackbox exporter allows blackbox probing of endpoints over HTTP, HTTPS, DNS, TCP, ICMP and gRPC. This exporter provides metrics about endpoint status, HTTP latencies, redirect information, DNS lookups latencies as well as statistics about SSL certificates expiration. It works out-of-the-box, as it just focuses on external visibility details.