AWS Function URLs allow users to create serverless applications that can be accessed and triggered by HTTP/S requests. They provide a simple way to connect Lambda functions to the web, making it easier to build and deploy serverless services quickly. Function URLs can also be used to invoke Lambda functions with Response Streaming enabled, which enables streaming response payloads back to clients in parts rather than waiting for entire payloads to fully generate and buffer. Datadog provides end-to-end visibility into requests to functions triggered by URLs, as well as key Function URL and Response Streaming metrics. With Datadog, users can get deep insight into the health and performance of their Function URLs, including real-time visibility into Function URL spans in Lambda Function traces, monitoring of key Function URL metrics, and support for monitoring Lambda functions with Response Streaming enabled.