Interactive labs
All 5 labs in this category
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LAB · 01
Head-of-Line Blocking — TCP vs QUIC
Drop one packet; see how HTTP/2 stalls while HTTP/3 doesn't.
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HTTP/2 Stream Multiplexing
Multiple streams interleave over one connection.
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Reconnect with Exponential Backoff
When the connection drops, retry with increasing delays + jitter.
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Server-Sent Events (SSE)
Server-push one-way stream over HTTP.
Open lab →LAB · 05
WebSocket Frame Flow
Animate frames flowing between client and server.
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