Fastly's Sustainability dashboard offers developers a tool to measure and optimize the energy use and carbon impact of their workloads, bridging a gap identified in Fastly's Green Coding Survey 2025, where many developers lack visibility into the sustainability of their code. The dashboard provides detailed data on emissions, allowing developers to track changes, identify resource-intensive services, understand geographical energy impacts, and automate data integration into existing observability pipelines. By using charts and data exports, developers can make informed decisions to enhance both performance and sustainability, aligning with Web Sustainability Guidelines to create more efficient and environmentally friendly web services.