midSpring
What is Spring Boot Actuator?
Updated May 17, 2026
Short answer
Actuator provides production-ready monitoring and management endpoints.
Deep explanation
It exposes metrics, health checks, environment details, and thread dumps via REST endpoints for operational monitoring.
Real-world example
Monitoring microservices health in production dashboards.
Common mistakes
- Exposing sensitive actuator endpoints publicly.
Follow-up questions
- What is /health endpoint?
- Can actuator be secured?