HTTP/3 WebSocket

Unlike HTTP, where you have to constantly request updates, with websockets, updates are sent immediately when they are available. WebSockets keeps a single, persistent connection open while eliminating latency problems that arise with HTTP request/response-based methods .

Conclusion. The benchmarks I ran are by no means a comprehensive analysis of all the nuances in the performance difference between HTTP and websockets. It did however confirm my initial impression that for many cases websockets can be faster than a traditional HTTP API .26 Oca 2018

Whereas HTTP relies on a client request to receive a response from the server for every exchange, WebSockets allow for full-duplex bidirectional communication . This enables the server to send real-time updates asynchronously, without requiring the client to submit a request each time.

As is clear from the table, for our use case Websocket is expected to be about 5-7 times faster than plain HTTP. 3. Security: From security perspective, both HTTP (via HTTPS) and Websockets via (WSS) provide the TLS layer so there is not much to choose from.13 Nis 2019