Content delivery networks (CDNs) play a crucial role in reducing latency by delivering cached data from a network of proxy servers, thus enhancing the end-user experience by lowering the load on origin servers and shortening data travel time. Datadog's Synthetic Monitoring now provides visibility into which CDN providers are loading resources during Synthetic tests, along with their cache status, allowing users to identify outdated caches that may cause testing issues and optimize CDN coverage accordingly. This feature is particularly useful for troubleshooting slow tests, as it helps pinpoint latency sources, such as CDN misses due to expired caches, and enables users to adjust cache policies for improved performance. Datadog integrates with various CDN providers like Akamai, Cloudflare, and Amazon CloudFront, offering insights into their usage within HTTP-based Synthetic tests to further enhance user experience. This visibility allows for quick identification of problematic CDNs, facilitating efficient support contact and configuration adjustments, and is offered to Datadog users through a 14-day free trial for those who are new to Synthetic Monitoring.