Caching Layers in 2026: CDN, App, DB, Query: What Goes Where
The article discusses the importance of caching layers in system design, particularly in 2026. It emphasizes that each caching layer serves a unique purpose and that misusing them can lead to inefficiencies. Properly utilizing CDNs, application caches, database caches, and query caches can significantly improve performance and reduce costs.
- ▪Four cache layers exist between a user's request and the data they seek.
- ▪Each layer answers a specific question, and choosing the wrong one can lead to increased costs and latency.
- ▪CDNs can cache more than just static assets, including API responses, if configured correctly.
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try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 425693) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Gabriel Anhaia Posted on May 24 Caching Layers in 2026: CDN, App, DB, Query: What Goes Where #systemdesign #caching #performance #architecture Book: System Design Pocket Guide: Fundamentals — Core Building Blocks for Scalable Systems Also by me: Thinking in Go (2-book series) — Complete Guide to Go Programming + Hexagonal Architecture in Go My project: Hermes IDE | GitHub — an IDE for developers who ship with Claude Code and other AI coding tools Me: xgabriel.com | GitHub Four cache…
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