WebTransport: The Next-Gen Web Protocol

WebTransport brings true multiplexed, bidirectional communication to the web by running over HTTP/2 and HTTP/3 with built-in TLS security. You get reliable and “best-effort” (unreliable) streams on a single connection, low-latency data delivery perfect for gaming, live chats, or IoT, and a cleaner upgrade path compared to WebSockets or gRPC workarounds.

This video breaks down why classic approaches (WebSockets, HTTP/2 push, gRPC) fall short, then dives into WebTransport’s mechanics—stream creation, unreliable streams, the extended CONNECT method, proxy support, and why it finally fixes issues like YouTube’s notification woes.

Watch on YouTube