Prometheus Blackbox Prober Cheat Sheet

External endpoint checks

Last Updated: November 21, 2025

Focus Areas

Focus
Define modules per protocol
Include service discovery targets

Commands & Queries

blackbox_exporter --config.file=blackbox.yml
Launch exporter
promtool check config prometheus.yml
Validate
curl http://localhost:9115/probe?module=http_2xx⌖=example.com
Test

Summary

Blackbox probes keep external availability visible.

💡 Pro Tip: Store config in Git and run from multiple clusters.
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