# dnsbin.ca

> A browser-only DNS playground — mutate any zone in the resolution chain and watch a recursive resolver walk it step by step.

- Status: active
- Started: 2026-05-23
- Category: Dev Tools
- URL: https://dnsbin.ca
- Tags: web, dns, devtools

dnsbin.ca is the newest member of my pastebin.ca family: a DNS playground that runs entirely in the browser. You can edit any zone in the resolution chain — root, TLD, authoritative — and then watch a recursive resolver walk it one step at a time, so you can actually *see* how a name gets resolved (and where it breaks).

Every trace gets a permanent, shareable URL, so I can hand someone a link that reproduces an exact DNS scenario. It's equal parts teaching tool and debugging sandbox.