Which systems or tools do you use to monitor application status and performance?

The following systems and tools are commonly used for monitoring the status and performance of applications:

• Prometheus + Grafana: for collecting metrics and visualizing data in real-time.
• ELK Stack (Elasticsearch, Logstash, Kibana): for centralized logging and log analysis.
• New Relic, Datadog, AppDynamics: commercial solutions for application performance monitoring (APM).
• Zabbix, Nagios: for infrastructure and service monitoring.
• Jaeger, Zipkin: for distributed tracing and latency analysis.

The choice depends on the project's specifics, monitoring requirements, and available budget.