DNS Is an Indirection Layer, Not a Lookup Table The "phonebook" metaphor everyone reaches for is actively misleading — and worse, it frames DNS as solved infrastructure when it's anything but. A phonebook is a static mapping. You look up a name, you get a number, done.
Source: [Dev.to](https://dev.to/sai_ram_0000/how-dns-actually-works-resolution-hierarchy-caching-and-production-failure-modes-195h)