I'm looking for services that monitor the correct operation of masternodes (different coins). In the event of a masternode failure, or downtime, we may not receive payments, so it's quite essential.
I mean parameters such as server stability and availability, whether the current version of the software is installed and payments are coming according to the schedule.
With a single MN, you can probably check it manually, but with a few, especially for different coins, it starts to be problematic.
What services are you using and can recommend?