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🌱 System Design (Beginner) · Interview Questions (Beginner) · cozy lesson

Design TinyURL

12 min · 1 min read · no scary math, promise

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You’ve got this. Read a little, play a little — I’ll wait. No rush.

POST /shorten {url} → id → abc123. GET /abc123 → 302. DB: id→url. Cache hot 20%. Rate limit POST. Scale: replicas + sharding by id.

Check your understanding

Correct answers earn XP (once each).

1. ID strategy beginner?

2. Read path?

My notes (saved in this browser)

Select text above → Save selection, or write your own. AlgoMaster-style notebook, local-first for MVP.

No notes yet. Your highlights will live here.

Finished reading? Seal it with a tick ✅

The checkbox in the explorer turns green too — same progress.