prometheus-blackbox-exporter - 0.13.0+ds-2+b11 main

The blackbox exporter allows blackbox probing of network endpoints over HTTP,
HTTPS, DNS, TCP and ICMP. Additional modules can be defined to suit other
needs.
.
Querying of endpoints happens via HTTP GET queries, by specifying the target
name and what kind of probing to execute. Results from the probe are returned
as a set of Prometheus metrics.