Get alerted on Slack, Discord, or webhook when your scheduled jobs fail silently. Add one line to your crontab. Know the instant something breaks.
Give it a name and a grace period (how long to wait before alerting).
Add a curl to your cron job, CI pipeline, backup script, or anywhere.
curl -fsS https://cron.win/p/your-slugIf the ping doesn't arrive within the grace period, we notify you on Slack, Discord, or a custom webhook.
Simple by design. Powerful where it counts.
No ping within the grace period? You get alerted. It's that simple.
Native alerts to Slack channels and Discord servers. Plus custom webhooks for anything else.
Full log of every check-in with timestamps, source IPs, and exit codes.
Report failures explicitly with /p/slug/fail or exit codes in the URL path.
Doing maintenance? Pause monitoring without losing your config.
Running on Cloudflare Workers. Your pings are received in under 20ms globally.
Start free. Upgrade when you have more jobs to watch.
Last updated: February 2026
By using cron.win, you agree to these terms.
cron.win monitors the arrival of HTTP pings from your scheduled jobs and sends alerts when expected pings don't arrive. The service is provided "as is".
You may create an account via GitHub OAuth. You are responsible for your account security.
Do not use the service for illegal purposes, to generate excessive automated traffic, or to abuse alert channels.
Ping data is retained per your plan tier and automatically deleted after the retention period.
Paid subscriptions are billed monthly via Stripe. Cancel anytime. No refunds for partial months.
cron.win is not liable for missed alerts, false positives, or any damages resulting from the service. Our liability is limited to the amount paid in the preceding 12 months.
support@cron.win
Last updated: February 2026
GitHub username, email, avatar. Ping metadata (timestamp, IP, user agent, exit code). Alert channel webhook URLs.
To provide monitoring and alerting. To manage your account and billing.
All data on Cloudflare infrastructure. Encrypted in transit. Ping data auto-deleted per retention tier.
We don't sell data. Shared with Stripe (payments) and Cloudflare (infrastructure) only.
One session cookie. No tracking.
Delete your monitors and data anytime. Contact support@cron.win to delete your account.
This page doesn't exist.
Use API keys to manage monitors programmatically. Include as X-API-Key header.
Paste your crontab output below. One monitor will be created for each line.
Create a public status page showing all your monitors' uptime.