Dotcom-monitor alerting system generates Uptime Alerts once a monitoring issue has been resolved and all the tasks under a monitoring device are reporting a successful monitoring result again.

To receive Uptime Alert notifications for a device, enable the Send Uptime Alert option on the device level on the Alerts tab.

How It Works

Let’s say you have created a device with two monitoring tasks to make sure that two web pages are loaded correctly, and the second task returns a 404 error. Here, the alerting system will be triggered and the entire device will be flagged as down. If group alerting is set up for the device, a downtime alert will be generated and a notification will be sent to the provided alert groups.

The device will continue to be flagged as down as long as any of the underlying tasks are still returning an error (unless you have applied a filter to the device that purposefully ignores specific errors).

If the Sent Uptime Alerts option is activated in the device settings, an uptime alert will be generated when all the tasks included in the device have EITHER returned a successful result OR you have applied a filter to the device that purposefully ignores the existing errors. If you want to receive uptime alerts for individual tasks, create a standalone monitoring device for each task.

Note that Dotcom-Monitor can send uptime alert notifications ONLY to the same delivery addresses or alert groups that were set to receive downtime alerts.


Dotcom-Monitor analyzes the addresses to which a DOWN alert has been sent. If the Sent Uptime Alerts option is activated and the same recipient address is provided for UP and Down alert notifications in the Delivery Address Group settings, an UP alert is sent to recipients which received DOWN alerts. If the recipients provided for UP notifications differ from the recipients of Down notifications for the device, an UP alert notification will not be sent altogether.

For example, if “” is configured to receive DOWN alerts but “” is set to receive UP alerts, then the Sent Uptime Alerts alert setting will be ignored and the UP notification will not be sent to ““. To receive UP notifications, the same delivery addresses for the Alerting and Ok events should be set in the alert group settings.