System Design Intermediate Pro

Design a URL Shortener (bit.ly / TinyURL)

A model interview answer: requirements, estimation, key generation, redirects, caching and scale

25 min read 35 views

Walk through a complete URL shortener design the way a strong candidate answers it: requirements and estimates, base62 vs hashing vs a key-generation service, 301 vs 302 redirects, hot-URL caching, sharding, expiry, analytics and abuse controls.

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Practice questions (6)

Estimating Traffic, Storage and Cache for a Shortener

Intermediate · Free

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Choosing a Key Generation Strategy

Intermediate

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301 vs 302 and the Analytics Path

Intermediate

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Custom Aliases, Expiry and Key Reuse

Intermediate

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Scaling Reads and Fighting Abuse

Advanced

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Quizzes (1)

Design a URL Shortener Quiz

0 attempts · 10 min · Pass 70% · Intermediate

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