Caching in System Design

2 in-depth guides covering how caching is used in real system design interviews. Learn when to use it, its trade-offs, and how to discuss it with confidence at companies like Google, Meta, Amazon.

Aug 1, 2026•30 min

LLM Gateway System Design Interview Guide: Token-Aware Rate Limiting, Routing & Semantic Caching

LLM gateway system design asks you to rate limit by tokens, not requests — and a response's token count isn't known until it finishes streaming. Covers token-aw...

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Nov 25, 2025•20 min

How to Design a Content Delivery Network (CDN) - Complete System Design Guide

Master CDN system design for your next big tech interview. Covers Anycast vs DNS-based routing, PoP architecture, multi-tier cache hierarchy, push vs pull CDNs,...

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Go Beyond Reading About Caching

Caching concepts show up across many system design interviews. Practice applying them in full interview simulations and get actionable feedback.

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Related Technologies

Distributed Systems Rate Limiter Cdn

Companies That Test Caching

Akamai Amazon Cloudflare Fastly Google Meta Netflix OpenAI Stripe