quic-demo.r3dakted.net

This site is an HTTP/3 showcase: every mechanism that distinguishes HTTP/3 from HTTP/2 is exposed as an interactive demo, alongside a live HTTP/2 baseline so the differences are visible without DevTools.

The right-rail sidebar always shows your QUIC connection's current state and a tailing log of the protocol events that produced it. For a full trace and a downloadable qlog, visit /inspect/session.

Demos

▶ Multiplexing under loss — live now

Watch a 100-tile grid load over HTTP/2 and HTTP/3 side by side under real packet loss — HTTP/2 stalls on head-of-line blocking while HTTP/3's independent streams keep flowing.

More coming in the next milestones:

• Handshake-RTT race — measured h2 vs h3 first-byte time
• 0-RTT resumption — three-bar comparison
• Connection migration — survive a Wi-Fi → LTE switch
• Per-stream independence — stall one, see the rest keep flowing
• QPACK on the wire — header compression byte counts