Google's service for monitoring performance and health of cloud applications. Like having a dashboard that shows the vital signs of all your applications in real-time.
E-commerce sites use Cloud Monitoring to track website performance and get alerts when response times slow down.
All four services collect metrics and logs, visualize them on dashboards, and trigger alerts. GCP Cloud Monitoring is part of the Google Cloud Observability suite (with Logging, Trace, and Profiler). AWS CloudWatch and Azure Monitor provide similar metric/alert/dashboard capabilities, while OCI Monitoring covers metrics, alarms, and integrations within Oracle Cloud.