Know when your cron jobs fail

Simple, reliable monitoring for your scheduled tasks. Get instant email alerts when your cron jobs don't run.

How it works

1

Create a check

Set up a new monitor with your expected schedule and grace period.

2

Add to your cron job

Add a simple curl to your cron job or script to ping CronSignal when it runs.

3

Get instant alerts

Receive email alerts when your job doesn't check in on time.

Simple integration

Just add a curl at the end of your cron job or script:

# Run your backup and ping CronSignal
0 2 * * * /usr/local/bin/backup.sh && curl https://api.cronsignal.io/ping/abc123

That's it. If your job doesn't run, you'll get an email alert.

Built for developers

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Email alerts

Get notified instantly when checks fail and when they recover.

Fast & reliable

Built on Cloudflare Workers for global low-latency monitoring.

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Secure by design

Each check has a unique ID - no API keys or complex auth needed.

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Grace periods

Set grace periods to avoid false alarms from slight delays.

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Dead simple API

Just ping a URL. Works with any language or platform.

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Ping history

View complete history of check-ins and failures.

Pricing

Beta

Free during beta

Get started today at no cost. Limited spots available.

  • Unlimited checks
  • Email alerts (down & up)
  • 1-minute monitoring interval
  • Ping history
  • Grace periods

Future pricing: $5/month for unlimited checks

Beta users keep free access for 6 months after launch

Join the beta

Sign up to get early access. No credit card required.