Each service that is monitored has a primary location that we check from. Once an outage is detected, we immediately perform checks from our other locations around the world to confirm the outage before any notification begins.
If you would like to regularly check from multiple locations you can setup checks for the same service from multiple locations in the control panel. These services will be clearly marked with the other location in the control panel.
You can find a complete list of all of our monitoring locations on our website