If you look at this page, towards the bottom http://docs.dotcloud.com/guides/websockets/ http://docs.dotcloud.com/guides/websockets/ It says the following: "t

If you look at this page, towards the bottom http://docs.dotcloud.com/guides/websockets/ http://docs.dotcloud.com/guides/websockets/ It says the following: "the old load balancers are based on Nginx, while the new ones are based on Node.js"