description Prometheus Blackbox Exporter Overview
The Prometheus Blackbox Exporter is an open source HTTP service designed to gather deep performance data from web applications. It captures detailed metrics like WebPageTest results and uptime information, presenting them in a format directly usable by the Prometheus monitoring system. This exporter is valuable for developers, DevOps engineers, and anyone needing granular insights into website or application health and performance analysis.
help Prometheus Blackbox Exporter FAQ
What does Prometheus Blackbox Exporter actually check?
Blackbox Exporter probes external targets and reports whether they respond correctly, such as HTTP, HTTPS, TCP, ICMP, and DNS endpoints. Prometheus scrapes the exporter instead of scraping the target service directly.
How is Blackbox Exporter different from node_exporter?
node_exporter reports host-level metrics like CPU, memory, disk, and network from a machine. Blackbox Exporter checks a service from the outside, which makes it better for alerts like website down, TLS expiring, or DNS failing.
What is a module in blackbox.yml?
A module defines how a probe should run, such as HTTP status expectations, timeout, method, TLS behavior, or DNS query type. Prometheus passes the module name as a parameter when it scrapes the Blackbox Exporter probe endpoint.
Can Blackbox Exporter monitor SSL certificate expiry?
Yes. For HTTPS probes, it exposes TLS-related metrics that can be used in Prometheus alert rules for certificate expiration windows, such as warning before a cert reaches its final days.
explore Explore More
Similar to Prometheus Blackbox Exporter
See all arrow_forward
Reviews & Comments
Write a Review
Be the first to review
Share your thoughts with the community and help others make better decisions.
