Your cron jobs are failing silently.
We tell you why.

Other tools say "job missed." CronDoctor tells you why it failed and how to fix it. One curl command to set up.

# Add one line to your crontab
0 3 * * * /path/to/backup.sh && curl -s https://crondoctor.com/ping/YOUR_ID

This catches missed jobs. Send exit codes and stderr to unlock AI root cause diagnosis.

Standard cron monitor

nightly-backupDOWN

Check-in missed. Expected at 03:00 UTC.

That's it. Now you start debugging.

CronDoctor — with failure details

nightly-backupCRITICALAI diagnosed

Non-zero exit code (exit 1) after 247s — 4x longer than P95 baseline.

AI:Disk full on /var/data — PostgreSQL could not write WAL segments. The backup process stalled waiting for disk space, then timed out.

Suggested fix: df -h /var/data && sudo apt autoremove && sudo journalctl --vacuum-size=500M

87% confidence

The simple ping catches missed jobs. Send exit codes and stderr for AI root cause diagnosis — free on every plan.

Start Free, No Credit Card Needed

How It Works

Add one line

Append a curl command after your cron job. When the job runs, it pings your unique CronDoctor endpoint.

Smart alerting kicks in

If the ping doesn't arrive on schedule, CronDoctor detects it and classifies severity. Adaptive thresholds learn your jobs' normal behavior and suppress false alarms — 60-80% less noise than binary monitors.

AI tells you why

Send exit codes and stderr with your ping, and CronDoctor diagnoses the root cause with a suggested fix. Delivered to your inbox, Slack, Discord, Teams, or PagerDuty.