Monitoring

Monitoring is the process of observing, tracking, and analyzing the performance, health, and behavior of applications, or infrastructure over time. It involves collecting metrics, logs, and traces to detect issues, optimize performance, and ensure reliability.

Monitoring is a proactive practice: it helps teams identify and resolve problems before they impact users or business operations.

Documentation

See also PHP Monitoring: Using PHP Observability Tools to Improve Web Apps.

Related : Application Performance Management (APM), Telemetry, Log, Trace, Metrics, DevOps, Downtime, Flame Graph, Availability, Quality of Service (QoS), Reliability, Service Level Agreement (SLA)