tcpdump -i any

Every packet reaching this server is captured — every protocol, every port, nothing filtered out — bucketed into 1-second windows per source IP and plotted here as they happen. Ping the site, curl it, proxy into it from another country, whatever — a dot should appear below within a couple of seconds, with one line fired per packet (not one thicker line) colored by which service it was headed for. If more than 10 IPs show up in the same window, only the 10 busiest are kept. The table below shows who is talking right now: a source drops off it ten seconds after its last packet.

A note on this data: connections are captured by a separate process directly off the network interface, not by the website application. Source IPs shown above are rendered as a deterministic, one-way letter notation (e.g. "qzk.xdr.pfw.lmb") instead of digits — the real address is never sent to your browser in any form, only this. Rows are deleted automatically on a short, rolling window with a hard storage cap, and are never shared with, sold to, or forwarded to any third party.