OpenPanel
An open-source alternative to Mixpanel · Analytics & Data
- DR
- 62 no change since last check
- Vote share
Analytics & Data
WatchCron
Cron Job & Heartbeat Monitoring for Developers
- Community votes
- 0
- DR by Ahrefs
- 0 no change since last check
Source: Domain Rating by Ahrefs, checked 3 Oct 2026, changed 3 Oct 2026.
Summary
Monitor cron jobs, uptime, ports, domains, and SSL certificates with instant alerts via Slack, Telegram, Email, and webhooks. No agent needed.
Questions and answers
How does WatchCron know my job actually ran?
Your job pings a unique URL when it starts and when it finishes. If a ping doesn't arrive inside the window you defined, WatchCron flips the monitor to Down and alerts you with one curl line and nothing to install.
What happens when a check-in is missed?
After the grace period you set, the monitor turns Down and routes an alert to every channel on the rule—Slack, Telegram, email, SMS, Pushover, PagerDuty and more—so the right person hears about it in seconds.
Do I need to install an agent or SDK?
No. A single HTTP request from cron, a shell script, or your app is all it takes. Client libraries exist for convenience, but they're always optional—never required.
What can I monitor besides cron jobs?
Website and API uptime, TCP/UDP ports, DNS records, domain and SSL-certificate expiry, mail-server blocklists, and scheduled HTTP tasks via Cloud Cron—all watched from one dashboard with one set of alert rules.
Is there a free plan?
Yes—the Free plan is free forever with 20 checks across every monitor type, plus unlimited port and domain monitors. Paid plans add more checks, 30-second intervals, every alert channel and team seats.
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Key features
- Cron job monitoring with unique ping URL per check
- Uptime monitoring with checks every 30 seconds from multiple regions
- Multi-channel alerts to Slack, Telegram, Email, SMS, PagerDuty
- Port and TCP/UDP monitoring
- SSL and domain expiration tracking
- Public status pages for customers
- Cloud Cron for scheduled HTTP tasks
- Team collaboration with role-based access
- REST API for programmatic management
- DNS blocklist monitoring
WatchCron has a free listing. The owner can unlock the full profile for $5:
- Founder story (locked)
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- Screenshots and demo video (locked)
- Dofollow website link (locked)
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Link metrics
| Metric | Value | Change |
|---|---|---|
| Trust Flow | 11 | no change since last check |
| Citation Flow | 27 | no change since last check |
| Referring domains | 44 | no change since last check |
| External backlinks | 112 | no change since last check |
Top topic: Arts/Crafts (10). Checked 3 Oct 2026, changed 3 Oct 2026. Link data by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
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