Continuous tracking and analysis of application performance metrics to identify bottlenecks, errors, and optimization opportunities.
Application Performance Monitoring shows that your checkout page takes 5 seconds to load and pinpoints the slow database query causing the delay.
All provide end-to-end visibility into application latency, errors, and dependencies. AWS commonly combines CloudWatch Application Signals (metrics/SLOs) with X-Ray (distributed tracing). Azure Application Insights focuses on app telemetry and dependency tracking. GCP uses Cloud Trace plus Monitoring/Logging under Cloud Observability. OCI offers a dedicated APM service for tracing, synthetic monitoring, and real user monitoring.