Your users found out first.
UptimeSignal checks your endpoints every minute from multiple regions.
The moment something breaks, you know. Not your customers.
✓ api.yourapp.com/health 200 OK (94ms)
✓ app.yourapp.com 200 OK (142ms)
✗ payments.yourapp.com Timeout (30000ms)
→ Alert sent to team@yourapp.comWe check. You get alerted. That's it.
Your users don't file bug reports when checkout fails. They just leave. By the time you notice revenue dropped, you've lost hours of sales and trust that took months to build.
Internal monitoring misses what users actually experience. Your server says "200 OK" but the API times out from Tokyo. Your health check passes but the database connection pool is exhausted.
You need to know what your users experience — from outside your infrastructure, from multiple locations, before they tell you.
That's synthetic monitoring. That's what UptimeSignal does.
Any URL that responds to HTTP. APIs, websites, webhooks.
Email in your inbox. Slack ping in your channel. Immediately.
Your monitors, their status, response times. No clutter.
Email and Slack alerts within 60 seconds of detecting downtime. Recovery alerts when you're back online.
We verify from 3 locations before alerting. No false alarms from network blips.
Pro plan checks every 60 seconds. Know about issues before they impact more users.
See how fast your endpoints respond. Catch slowdowns before they become outages.
Full history of every check. See patterns. Debug issues. Know exactly when things broke.
APIs, websites, webhooks, health checks. Any HTTP endpoint. GET, POST, custom headers.
No per-monitor fees. No calculator needed.
Get started with essentials
For serious monitoring
No credit card required
Meanwhile, at other monitoring tools:
Unlimited monitors. Flat rate. Your bill doesn't scale with your infrastructure.
Find out for sure.
We'll send you a magic link. No password to forget.
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