DNS Detective

Trace DNS, HTTP, and packets through real cases until the internet clicks. (About 6 hours)

1.Drag devices onto the board and connect them from the colored dots.

2.Clear 20 Cases — Check + quiz. Finish Ready for code, then pick a language.

3.Case File + Inspector teach DNS, APIs, HTTPS, cookies before you write code.

Finish 20 cases → pick a language and start coding. Progress syncs to your FDE path and profile when you are signed in.

Skills this game covers on the FDE path

Skill 1 of 6

How the internet works

DNS, HTTP, APIs, frontend/backend, HTTPS, cookies — enough to pick a language and start coding.

Cases (guided)

Twenty short mysteries with Check + a one-question quiz. Wire boxes, then open shop.example.

Sandbox (free)

Unlocks after Case 1. Drag earned devices and probe with Open site, Fetch API, or Trace route.

Ready for code

Finish all 20 cases → you understand how the web works. Next: pick a language and write code.

Rookie cases (1–4)

Get online, DNS phone book, HTTP 200, ports as doors.

Shop floor (5–8)

Server + DB, 500 + logs, CDN logo, broken-cable failover.

Detective desk (9–12)

Wrong DNS, firewall block, 301 redirect, stale DNS cache.

Ops toolkit (13–14)

Traceroute hops and Cache-Control TTL on the CDN.

Ready for code (15–20)

URL parts, API JSON, frontend/backend, HTTPS, cookies, graduate.