Pingdom

YAML-configured uptime monitoring with rich assertion DSL. Git-ops friendly.

Apache-2.0 · Go · ★ 7000 · Fresh

Cron-job and heartbeat monitoring for scheduled tasks. It alerts when an expected ping does not arrive.

BSD-3-Clause · Python / Django · ★ 10000 · Fresh

Self-hosted uptime monitor + status page. The UptimeRobot replacement most engineers land on.

MIT · JavaScript / Node.js · ★ 66000 · Fresh

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