We have multiple monitoring tools in our enviroment which can alert us if things go wrong. We use the opensource tools that are out there mostly. But as we have a fully locally hosted network even our own monitoring can fail. Thats why we rely on external monitoring to monitor our own monitoring.. 😉
app.nextcloud.com is the official nextcloud store and hosted by Nextcloud GmbH so we don’t have any influence on the availability of that service. But as we rely on the store for deploying apps and we like to be notified if the appstore is down, it’s included in our monitoring.
As you can see we have included only our free hosting and our website. Our business users have their own dashboard of the uptime of their services. For individual plans we are planning the same service if you buy a 500Gb plan or higher (as we have to pay for the service ourselves).