FAQ
Frequently asked questions
How to check service status, how we aggregate signals, what pins mean, and how we compare to other outage trackers.
Outage basics
The questions people Google in the middle of an incident.
Where signals come from
Three layers, one map.
Reading the map
Alerts
Comparison with other trackers
Watch your stack
Free email alerts when the services you watch have confirmed outages.
See also: Methodology · Data sources · All providers