Datadog's new heatmaps provide an instant and actionable way to visualize server performance across multiple servers, allowing users to quickly identify patterns and outliers in their infrastructure. By adding a third dimension of color brightness, these heatmaps enable users to distinguish between normal and anomalous behavior, making it easier to troubleshoot issues and gain insights into the overall health of their cloud-based infrastructure. With this visualization tool, users can quickly get an at-a-glance understanding of how most servers are performing and identify misbehaving servers that may be causing problems.