WebTransport: The Next-Gen Web Comm Protocol

WebTransport is a slick, all-in-one framework riding atop HTTP/2 and HTTP/3 that finally gives us true multiplexed, bidirectional streams—both reliable and unreliable—over a single, TLS-secure connection. Gone are the days of wrestling with WebSocket quirks or gRPC’s browser limitations; with WebTransport you get low-latency, server-push (and even “unreliable” fast lanes) baked right in.

In the video, Hussein Nasser walks you through why WebSockets, HTTP/2 Push, and gRPC fall short, then unpacks WebTransport’s magic: extending CONNECT for new streams, dealing with h2 vs. h3 differences, proxying, backfill strategies, and even why YouTube still can’t nail notifications. It’s a crash course in modern web transport design—perfect for anyone building real-time, high-performance backends.

Watch on YouTube