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Web Sockets give you full-duplex functionality with a single connection between the client and server. Full-duplex allows messages to be passed in both directions at the same time. HTTP is half-duplex where data can only be passed in one direction at a time. For example, the server cannot respond to a client request until it has finished receiving the request. A Web Socket connection can also remain open for the life of the session.The other nice thing about Web Sockets is that they operate over port 80/443 so there are no firewall or proxy issues to contend with

"Orbot is a free proxy app that empowers other apps to use the internet more securely. Orbot uses Tor to encrypt your Internet traffic and then hides it by bouncing through a series of computers around the world. Tor is free software and an open network that helps you defend against a form of network surveillance that threatens personal freedom and privacy, confidential business activities and relationships, and state security known as traffic analysis."

"The Most Trusted VPN With Over 200 Million Downloads"