Cron monitoring that is the main feature, not an afterthought
Uptime Robot is one of the most popular free uptime monitoring services. It primarily monitors HTTP endpoints, pinging URLs every 5 minutes to check availability. They added heartbeat monitoring as a secondary feature, but it receives less attention than their core HTTP monitoring.
| Feature | CronPing | Uptime Robot |
|---|---|---|
| Primary focus | Cron job monitoring | HTTP uptime monitoring |
| Free cron monitors | 3 monitors, 7-day retention | Limited heartbeats on free |
| Cron-specific features | Expression builder, schedule references | Basic heartbeat check |
| Per-monitor status pages | Included on all plans | Shared status page only |
| SVG status badges | Per-monitor badges included | General status badge only |
| Grace period configuration | Per-monitor customizable | Fixed threshold |
| REST API for cron monitors | Full CRUD API | General API (not cron-specific) |
| Webhook alerts | All plans | Pro plan ($7/month) |
| HTTP uptime monitoring | Not included | Core feature (50 free monitors) |
| Starting paid price | $7/month (20 cron monitors) | $7/month (50 HTTP + heartbeats) |
CronPing is better when cron jobs are your main concern. You get cron-specific tools (expression builder, schedule references), per-monitor status pages, and an API designed for scheduled task workflows. If cron monitoring is what you need, a purpose-built tool beats a bolted-on feature.
Uptime Robot is the right tool if HTTP uptime monitoring is your primary need and you want to add a few heartbeat monitors alongside it. Their free tier for HTTP monitoring is genuinely generous and hard to beat.
Add a single curl command to your crontab and get alerted when jobs fail. No credit card, no complex setup.
Start Monitoring — Free