Unfortunately, I bought several monitoring tools before discovering RobotALP. The major issue with all the others is that they can't effectively prevent false positives. The ones that do manage this rely on IP whitelisting and/or status codes exceptions, which is a hassle since we cannot always whitelist IPs, IPs can change, and exceptions are not the ideal way to go.

There's no point in receiving alerts that our monitored services are offline, only to find out later that they're actually online (false positives). What happens with other tools is that there are so many false alerts that we start ignoring the notifications. Then, when services are genuinely offline, we miss them because we’ve tuned out the alerts.

With RobotALP, if a check indicates that a service is offline, it automatically performs additional checks using other IPs to confirm if it's truly down (we only need to set this up one time). We can set up to 10 IPs from different countries, ensuring that when we receive an offline notification, it’s the real deal.

In short, all the tools I bought prior to RobotALP have turned out to be completely useless... just money down the drain. Here are the ineffective tools I purchased before discovering RobotALP:

OneUptime
Tethered.app
MonSpark
KloudFox

Happy monitoring!