Alert Events
UptimeObserver supports several alert event types that trigger notifications through your configured integrations. This page explains each event type, the alert retrigger feature, and alert snoozing.
Alert Event Types
When adding an alert to a monitor, you can choose from the following event types:
| Event | Description | When It Triggers |
|---|---|---|
| Monitor Down | A monitored service is unreachable or failing | After all retries are exhausted and the check still fails |
| Monitor Up | A previously down monitor is now reachable | On the first successful check after a failure |
| Monitoring Paused | Monitoring has been manually paused | When a user pauses a monitor |
| Monitoring Resumed | A paused monitor has been restarted | When a user resumes monitoring |
| SSL Expiry 14 Days | SSL certificate expires in 14 days | 14 days before certificate expiration |
| SSL Expiry 7 Days | SSL certificate expires in 7 days | 7 days before certificate expiration |
| SSL Expiry 1 Day | SSL certificate expires in 1 day | 1 day before certificate expiration |
Recommended Setup
We recommend configuring alerts for both Monitor Down and Monitor Up events. This ensures your team is notified when an issue starts and, just as importantly, when it has been resolved.
Monitor Down
The most common alert type. Triggers when a monitor check fails after all configured retries. Use this to be notified of downtime, server errors, or connectivity issues.
Monitor Up
Triggers when a previously failing monitor returns to a healthy state. Useful for tracking incident resolution and confirming services are back online.
Monitoring Paused & Resumed
These events track when monitoring is manually paused or resumed. Use them for: - Tracking maintenance windows - Notifying teams when monitoring coverage changes - Recording when services are intentionally taken offline
SSL Expiry Events
For HTTPS monitors on paid plans, UptimeObserver tracks SSL/TLS certificate expiration. Three staggered alerts give you time to renew:
| Days Remaining | Alert | Action |
|---|---|---|
| 14 days | Warning | Start renewal process |
| 7 days | Urgent | Renewal should be in progress |
| 1 day | Critical | Immediate action required |
Alert Retrigger
Premium Feature
Alert retrigger is available on paid plans only. Free users will see the message: "Alert retrigger is a Premium feature."
The alert retrigger feature sends repeated notifications while an incident is still active, keeping your team aware until the issue is resolved.
Configuration
- On a monitor's alert settings, enable the toggle: "Re-send alert while incident is active"
- Set the retrigger interval — how often to resend the alert
| Setting | Range | Default |
|---|---|---|
| Retrigger Interval | 10 minutes to 24 hours | — |
Error: This feature requires a premium plan. Please upgrade your plan.
Free plan users who attempt to enable alert retrigger will receive this 403 error. Upgrade to Indie or Pro to use this feature.
Use Cases
- Extended outages — Receive hourly reminders that an incident is still active
- On-call escalation — Combine with incident management integrations for periodic re-notification
- After-hours incidents — Ensure teams don't miss alerts during off-hours
Alert Snooze
Alert snoozing lets you temporarily silence notifications for a monitor without pausing monitoring itself.
Snooze States
| State | Description |
|---|---|
| Alert Snoozed | Notifications are temporarily suppressed |
| Snooze Removed | Snooze was manually canceled before expiry |
| Snooze Expired | Snooze duration ended; alerts resume automatically |
When to Snooze
- Planned maintenance — Silence alerts during scheduled maintenance windows
- Known issues — Suppress notifications for issues you're already aware of and working on
- Testing — Temporarily disable alerts while testing new configurations
Note
Snoozing alerts does not pause monitoring. Monitors continue to run and collect data — only notifications are suppressed.
Need Help?
If you need assistance configuring alerts, reach out using the "Need Help?" button on the bottom right corner or email us at support@uptimeobserver.com.