CoreDNS is the default DNS server in Kubernetes, providing name resolution and service discovery for applications within a cluster. Datadog has introduced an integration that allows users to monitor CoreDNS metrics, offering insights into the activity within their Kubernetes clusters. By monitoring metrics such as request rates, cache utilization, latency, error codes, resource usage, and plugin performance, users can gain a comprehensive understanding of their DNS server's behavior and optimize its configuration accordingly. This integration is compatible with EKS, AKS, GKE, and self-managed Kubernetes infrastructure.