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Between a Click and a Page

By @suvroghoshin. DNS, TCP, TLS and HTTP step by step, dropping pieces on purpose.

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The explainer’s cover: the title Between a click and a page and a bench of parts in isometric.Open on its site
Screenshot of Between a Click and a Page on its original site, taken on October 25, 2026. The lab belongs to its author; we only link to it.

What it is

The best networking explainer we found. You follow a request step by step and then drop a piece of the response on purpose, to see how TCP holds the bytes that arrived later until it repairs the gap.

  • The site says the traffic is simulated and the timings are illustrative

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