By default, whenever an outage is discovered, our system will run five confirmation checks from different locations to ensure that this outage is accurate. You can lower the number of confirmation checks for any of your network services checks. You may want to do this if you would like to be alerted for localized network connection failures.

Accounting for AnyCast IP is a good reason to use this feature. If you are monitoring a service that uses an AnyCast IP, it is possible that the confirmation check can actually reach a different POP which is up, thus cancelling a real outage. To prevent this, you can reduce the number of confirmation checks needed and whitelist the other nodes which you are certain will reach the same POP. This is a very effective way of monitoring AnyCast infrastructure.

In order to have access to this feature, you will need to e-mail our support team and request it. Once it is enabled, edit the network service check on which you would like to limit the number of confirmation checks.

On the Thresholds tab, you will see a Confirmation Required dropdown. Select however many confirmation checks you would like, and then click Save. From now on, this network service check will only perform the number of confirmation checks you have specified.