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Designing a URL Shortener in AWS (Part 1): The Architecture
TL;DR: mol.la is an open-source URL shortener I built in Go on AWS. The design target is 100 million new links a month with a 100:1 read-to-write ratio, a p99 redirect under 50 ms at the edge, and 99.9% availability for the redirect path. The whole design follows three rules. First, the redirect…