Healthchecks vs Blackbox Exporter
A side-by-side comparison of two self-hosted monitoring & status options — licensing, setup difficulty, resource needs, and what each one replaces.
Healthchecks
Cron job and scheduled task monitoring
VS
Blackbox Exporter
Probes endpoints over HTTP, TCP, DNS, and ICMP
| Feature | Healthchecks | Blackbox Exporter |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 93 · Excellent | 84 · Excellent |
| Category | Monitoring & Status | Monitoring & Status |
| License | BSD-3-Clause | Apache-2.0 |
| Language | Python | Go |
| Setup difficulty | Easy | Easy |
| Min. RAM | 256 MB | 32 MB |
| Deployment | docker, bare-metal | docker, kubernetes, binary |
| GitHub stars | ★ 10,358 | ★ 5,882 |
| First released | 2015 | 2016 |
| Replaces | Pingdom | Pingdom |
What are Healthchecks and Blackbox Exporter?
Healthchecks
Healthchecks is a self-hosted service that monitors cron jobs and scheduled tasks using dead man's switch pings. It targets administrators who need to know when a recurring job silently fails. It is deployed via Docker or a Django install.
- Dead man's switch for cron jobs
- Many notification integrations
- Per-check schedules and grace
- REST API
Blackbox Exporter
The Blackbox Exporter allows Prometheus to probe endpoints over HTTP, HTTPS, DNS, TCP, ICMP, and gRPC. It is the standard way to perform black-box availability and latency monitoring with Prometheus.
- HTTP, TCP, DNS, ICMP probes
- TLS certificate checks
- Prometheus integration
- Multi-target probing
Healthchecks vs Blackbox Exporter: key differences
Healthchecks is written in Python, while Blackbox Exporter is built with Go. Licensing differs — BSD-3-Clause for Healthchecks versus Apache-2.0 for Blackbox Exporter. Blackbox Exporter is the lighter option, starting around 32 MB of RAM against 256 MB for Healthchecks.
Why pick each one
Choose Healthchecks if…
- Catches silently failing jobs
- Lots of notification channels
- Lightweight
Watch out for
- Narrow use case
- Not for metrics
Choose Blackbox Exporter if…
- Simple uptime monitoring
- Tiny footprint
Watch out for
- Needs Prometheus to be useful
- No standalone UI
Frequently asked questions
Is Healthchecks or Blackbox Exporter better?
Neither is universally better. Healthchecks has the larger community; both share a easy setup difficulty, so the decision comes down to features and licensing.
Are Healthchecks and Blackbox Exporter free and open-source?
Yes. Healthchecks is licensed under BSD-3-Clause and Blackbox Exporter under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Healthchecks and Blackbox Exporter with Docker?
Healthchecks: yes. Blackbox Exporter: yes.
Which is lighter on resources, Healthchecks or Blackbox Exporter?
Blackbox Exporter has the smaller minimum footprint at 32 MB of RAM, compared to about 256 MB for Healthchecks. Real-world usage depends on library size, user count, and enabled features.