Stop silent cron failures.
CronObserver alerts you when scheduled jobs don’t run on time — with grace periods, escalation policies, and clear explanations so you can fix issues before users notice.
Silent cron failures often go unnoticed for hours — until users complain or data is lost.
Free plan available. No credit card required.
Set up in 2 minutes. Works with cron, CI, Kubernetes, and serverless jobs.
Most teams only discover broken cron jobs after something goes wrong.
Example
After your task completes:
run_backups_or_something && curl -i -X POST https://cronobserver.com/checkin/<token>
Tip: keep the check-in call at the end of your job so failures don’t report success.
Built for production systems
CronObserver focuses on reliability, clarity, and predictable behavior — no noisy alerts, no guesswork.
Used to monitor critical background jobs
Designed by engineers who’ve been paged at 3am
Transparent, observable monitoring (Prometheus & Grafana)
Why CronObserver
No more silent failures
Know when a job didn’t run — not hours later, not from a user report.
Clear explanations
See why an observer is overdue with timelines and execution context. Not just whether a job ran — but why it didn’t.
Fewer noisy alerts
Grace periods, cooldowns, and escalation policies reduce alert fatigue.
Built for modern stacks
Cron, GitHub Actions, Kubernetes, AWS Lambda, Docker, and more.
How it works
1) Create an observer
Define a schedule, grace period, and alert rules.
2) Run your job
Cron, CI, Kubernetes, or serverless — anything that can make an HTTP request.
3) Check in on success
Send a request when the job completes. If it doesn’t arrive on time, we alert you.
Works with your existing tools
Integrations are configured per observer — not globally.
Datadog
New Relic
Sentry
Dynatrace
Webhooks
Prometheus / Grafana
Simple, predictable pricing
Start free. Upgrade when you need more observers, alerts, or integrations.
No credit card required for the free plan.