Logging
Serilog, NLog, structured logging, log levels, and correlation ID in distributed systems
Monitoring
OpenTelemetry, Prometheus, Grafana β collecting and visualizing application metrics
Tracing
Distributed tracing with OpenTelemetry, Jaeger, Zipkin β tracing requests across microservices
Health Checks
IHealthCheck, /health endpoint, ELK Stack (Elasticsearch, Logstash, Kibana) for log aggregation