Yael Goldstein is discussing the importance of DNS in infrastructure and how complete visibility into internal and external DNS resolution is necessary to keep it healthy and performant. Datadog has announced new DNS monitoring features that provide a unified view of DNS traffic, enabling users to troubleshoot DNS end-to-end and ensure application performance and availability. The new Cloud Network Monitoring's DNS view provides insight into the health of internal DNS servers and service discovery, while Synthetic DNS tests help detect DNS failures and misconfigurations. With these features, users can assess the health of all internal DNS servers in a single view, investigate DNS communication from the client side, troubleshoot DNS server latency and failure, correlate DNS performance with server monitoring data, detect irregularities in DNS record mapping and resolution times, and identify potential problems before they affect users. The new feature also allows users to graph DNS errors by type and display visualizations of key DNS-specific health metrics, such as volume, response time, and failure rate of DNS requests. Additionally, Datadog provides integrations with popular DNS services like CoreDNS, PowerDNS, and Amazon Route 53, enabling users to correlate DNS flow data with performance metrics from across their entire environment.