
Building a URL Shortener: A System Design Guide
A practical system design walkthrough of a URL shortener—key generation, storage, redirects, caching, and scale—for engineers who want to understand how it works.
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A practical system design walkthrough of a URL shortener—key generation, storage, redirects, caching, and scale—for engineers who want to understand how it works.

A look at the caching, database, and edge-routing decisions behind ZipZy's redirect layer — and the mistakes we made along the way.