WebTransport is a cutting-edge protocol built on HTTP/2 and HTTP/3 that tackles the limitations of WebSockets and gRPC by offering multiplexed streams with both reliable and unreliable delivery. Every connection is secured with TLS, enabling ultra-low-latency, bidirectional communication that’s perfect for real-time web apps.
Beyond just faster data, WebTransport revives stalled ideas like HTTP/2 Push and addresses quirks in existing notification systems (think YouTube updates). It works over modern HTTP versions, skips unreliable streams on HTTP/1.1, and even smooths out proxying and upgrade paths—making it a true game changer for backend engineers.
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