It's free and reliable. It helps me help clients to be up.

I appreciate UptimeRobot's good UI and helpful features, making it easy to navigate and intuitive. It's reasonably priced compared to competitors, even though the last price hike was a bit hard to swallow. Their support team really came through with a better offer when I needed it. The setup was fine and had no issues, and it notifies me within a minute if there are any system issues.

Provides the features it promises. No surprises