Know when your services go down.
Before your users do.
HTTP uptime monitoring with zero-config email alerts, dependency-aware checks, and full failure diagnostics. Starts working in under two minutes.
No credit card required. Free plan available.
Built for engineers who hate surprises
More signal, less noise. Every check tells you exactly what happened.
Zero-config email alerts
Alerts fire on day one. No SMTP server to configure — we send from our own infrastructure via Resend.
Dependency-aware monitoring
Declare that service B depends on A. If A goes down, the alert says "dependency unavailable" — not a false alarm on B.
Real API endpoint testing
POST and PUT monitors support full request bodies with configurable Content-Type. Test that your API actually processes a payload, not just that the server responds.
Failure diagnostics
Request headers, response headers, and up to 10 KB of response body are captured on every failure. Debug the exact HTTP exchange without re-running anything.
Content verification
Specify a string that must appear in the response body. Catch maintenance pages, CDN-cached errors, and misconfigured proxies that return 200 with wrong content.
Pause vs. mute
Pause stops checks during maintenance windows. Mute keeps checks running but silences notifications. Most tools conflate these — we don't.
Simple pricing
Start for free. Upgrade when you need more.
- ✓ 1 monitor
- ✓ GET & POST requests
- ✓ 5-minute check interval
- ✓ Email alerts (zero-config)
- ✓ Incident tracking
- ✓ 7-day check history
- ✓ Check Now on demand
- ✓ 20 monitors
- ✓ 1-minute check interval
- ✓ Everything in Free
- ✓ PagerDuty integration
- ✓ Custom alert policies
- ✓ Custom SMTP override
- ✓ Dependency monitoring
- ✓ 180-day check history
- ✓ Failure diagnostics (headers + body)
- ✓ Team member management
- ✓ 100 monitors
- ✓ GET, POST, HEAD & PUT requests
- ✓ Everything in Pro
- ✓ PagerDuty integration
- ✓ Custom alert policies
- ✓ Team member management
- ✓ Priority support