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2026-04-09 20:53
System Design From Scratch: The Components That Actually Run Production Systems
You open amazon.com. A product page loads in under a second. Behind that single page load, your request hit a DNS server, bounced through a CDN edge node, passed a rate limiter, got distributed by a load balancer, routed by an API gateway, processed by a microservice, checked a Redis cache, and maybe — maybe — touched an actual database.
That's system design. Not theory. Not whiteboard boxes. The...