What is US-Requests-HTTP-Proxy?

Last updated: March 21, 2025

You are charged for the number of HTTP DELETE, OPTIONS, PATCH, POST, and PUT requests that CloudFront forwards to your origin or edge function. This also includes the number of HTTP WebSocket requests (GET requests with the Upgrade: websocket header) that CloudFront forwards to your origin or edge function.

The prefix represents the United States (Regional Designation).