A complete deep dive into DNS — the invisible infrastructure that translates every human-readable name into a machine address. Every section has a live AI tutor you can ask anything.
Every DNS lookup traverses a hierarchy of layers — from your own device's memory all the way to servers running since the 1980s. Click any layer to explore it.
Type any domain and watch the full resolution journey play out step by step, with realistic timing and each hop explained.
Before any network request goes out, your system checks a cascade of caches. Step through to see what happens at each stage — and learn how to flush each one.
The authoritative nameserver stores key-value pairs called records. Each type serves a distinct purpose. Click any record to see what it does and what it looks like in the wild.
Traditional DNS has central points of control — ICANN governs the root zone, registrars can be pressured by governments, domains can be seized. What does a decentralised alternative look like?