CDN Node Mapping Nov 10, 2025 Pavel Klachan A long time ago, interviewers loved to ask, “Tell me in detail what happens when a user enters a website address and tries to open it.” While it’s beyond our scope to describe every single stage in full detail, we can examine a small but critical part of it: how a website address is mapped to a CDN node, of which there can be thousands around the world. An incorrect mapping can lead to slow loading times, stalled image rendering, and a frustrating user experience. Let’s delve into the details. (...)