CloudCheckr is a web-based platform that allows users to monitor and optimize the cost and performance of their AWS infrastructure, providing customized recommendations. By integrating with Datadog, CloudCheckr offers granular memory usage metrics for every AWS instance, enabling data-driven decisions on resource management and cost optimization. The platform provides historical data, performance trends, and right-sizing reports to help users maintain an agile and cost-effective infrastructure. Users can set custom alerts to track their consumption or spending, and integrate Datadog with CloudCheckr through a simple process that requires only API keys. With its integration, users can quickly make informed decisions on resource allocation and optimize their AWS usage.