Know your endpoints are up before your users do.
Run synthetic checks from multiple regions and get alerted the moment something breaks. Built for teams who treat uptime as a feature.
Checks from 7 regions, worldwide.
Every check runs from the regions that matter to your users, so a regional outage never goes unnoticed.
Everything you need to trust your uptime
Synthetic monitoring, alerting, and request control in one place.
Checks from 7 global regions
Probe your endpoints from distributed regions to catch regional outages and CDN issues before users report them.
Alerts that wake you up
Email and Slack notifications the instant a check fails.
Full request control
Custom headers, body, and assertions on every request.
assert: status == 200 headers: { Authorization: Bearer *** }
SSL & expiry tracking
Never let a certificate lapse silently again.
- issuer
- Let's Encrypt
- expires
- Oct 26, 2026
- renewal
- due in 29d
- issuer
- Let's Encrypt
- expires
- Nov 20, 2026
- renewal
- auto
Uptime history & trends
Rolling uptime per check, with regional breakdowns so you spot patterns.
Incident timeline
See exactly when a check broke, for how long, and when it recovered.
Webhooks & integrations
Pipe alerts into PagerDuty, Slack, Discord, or any HTTP endpoint.
How it works
From signup to your first resolved incident in five steps.
- 01
Add your endpoint
Enter the URL and HTTP method. Attach headers, body, and auth so the check reaches the real thing.
- 02
Set assertions
Define what a healthy response looks like: status code, body match, latency ceiling.
- 03
Choose regions & interval
Pick which of the 7 regions run the probe and how often, down to every 60 seconds.
- 04
Get alerted instantly
The moment a check breaks an assertion, an alert lands in email or Slack in under a second.
- 05
Track uptime & resolve
Watch the uptime trend, follow the incident timeline, and confirm recovery when green returns.
Your first check, live before you finish this page.
No credit card, no sales call. Point it at an endpoint, pick your regions, and watch the status dot turn green. That's the experience we're rebuilding right now.