An interactive visualization that follows a single HTTP request through its entire ~200ms life — DNS, TCP, TLS, the kernel, Node's event loop, Postgres, and back

200ms.thenodebook.com · 2026-08-03 · by Long Nguyen ·generic
See what really happens in the ~200ms after you press Enter: a single HTTP request traced in real time through DNS, TCP, TLS, the Linux kernel, Node's event loop, and Postgres — then back to the pixel. Scroll distance equals time.

An interactive visualization that follows a single HTTP request through its entire ~200ms life — DNS, TCP, TLS, the kernel, Node's event loop, Postgres, and back

Comments (0)

No comments yet