Monitoring Guide
DownDetector Status Check: How to Confirm If DownDetector Is Down
Updated 2/26/2026 • 5 min read
Use a repeatable DownDetector status check workflow to verify outages quickly and avoid false alarms.
Start With Independent Signals
When you suspect a DownDetector outage, verify with at least two independent signals before escalating. One signal can be stale, cached, or region-specific.
Compare an external monitor with a direct request from your shell or observability tooling so you can distinguish platform issues from local browser noise.
- Check current status and last successful check timestamp.
- Run a direct HTTPS request from your own network.
- Confirm DNS resolution and TLS handshake are healthy.
Use a Short Confirmation Window
Treat the first failed request as a warning, not proof. Require repeated failures in a short time window to avoid incident churn.
A 2 to 5 minute confirmation window usually balances fast detection with alert accuracy for public website checks.
Record Evidence for Incident Timelines
Capture HTTP status, latency trend, and check timestamps. This gives responders enough context to compare behavior during and after recovery.
Keep the evidence lightweight and machine-readable so you can reuse it in status updates and post-incident review docs.
Frequently Asked Questions
How often should I run a DownDetector status check?
For public availability, every 30 to 60 seconds is common. Start at 60 seconds and lower only if your incident response needs faster detection.
Why does a single failed check not mean the site is down?
Single failures can be caused by transient routing issues, packet loss, or local DNS cache problems. Repeated failures from independent checks are more reliable.
What is the fastest way to reduce false outage alerts?
Use consecutive-failure thresholds and keep one fallback check path. This catches real downtime while filtering one-off network noise.