Click a link and your machine cuts the data into packets carrying the destination IP address, pushed through dozens of routers to the server; the server returns the response the reverse way. TCP/IP reassembles packets correctly & resends lost ones.
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Pick a ‘Scenario’ (load page · DNS lookup · packetize · TCP handshake · congestion · HTTPS) · click a concept (packet/IP/router/DNS/TCP…) for details
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Traffic & latency over timepackets in flightlatency