Heartbeat monitoring for cron & scripts

The heartbeat monitor for jobs that can't afford to fail silently.

Create a check, ping it when your cron or script runs, and get alerted the moment something stops checking in — without a full observability stack.

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Built for indie hackers and small teams.

nightly-backup

Down

Last ping 2 hours ago · interval 30m

Ping URL

GET /ping/a1b2c3d4-e5f6-7890-abcd-ef1234567890

Slack alert sent

nightly-backup missed its check-in window and was marked down.

See it in action

Watch how checks, pings, and Slack alerts work in under two minutes.

How it works

Three steps from silent failure to instant visibility.

Create a check

Set an expected interval and grace period for each cron job, script, or background worker.

Ping on success

Add one HTTP call to your job. Each successful run hits your unique ping URL.

Get alerted when it stops

If pings stop arriving on time, the check goes down and your team gets notified.

View integration guide

Everything you need, nothing you don't

Focused monitoring for scheduled and background work.

One-line integration

No SDK required. Copy a ping URL and add a single GET request to your existing job.

Smart missed-ping detection

A background worker evaluates every check every 60 seconds, respecting your interval and grace window.

Actionable down alerts

Know the moment something stops checking in — before your users or data pipeline do.

Built for small teams

Lightweight monitoring without standing up Prometheus, Grafana, or a full observability stack.

Get notified where your team already lives

Connect alerts per check. Slack and Discord are supported today — Email and PagerDuty are on the way.

Available

Slack

Incoming webhook alerts delivered straight to your channel.

Available

Discord

Webhook notifications for your server channels.

Coming soon

Inbox alerts when a check goes down.

Coming soon

PagerDuty

Escalate critical failures to your on-call rotation.

Configure a Slack Incoming Webhook per check from your dashboard. More channels ship soon — no migration needed when they land.

Stop finding out from your users

Set up your first check in minutes. Know the moment a cron job, backup script, or background worker goes quiet.

Create your first check