Beyond TTL: Explicit Cache Invalidation
Most engineers default to TTL for cache invalidation. But a simple Time-To-Live guarantees stale reads for a duration, which is unacceptable for criti…
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The Fastest Query Is the One You Never Run: The Four Layers of Rails Caching
Rails Performance: Lessons from Production — #4 The first three posts were about making queries cheaper — fewer N+1s, indexes, not dragging data back …
Cloud TTS Chirp3-HD with Caching: Fixing Voice Readout for Accessibility
Cloud TTS Chirp3-HD with Caching: Fixing Voice Readout for Accessibility As a solo developer, keeping the product lean and accessible is paramount. A …
Want to Go Deeper?
Your LLM bill is exploding because 70% of user queries are semantically identical, yet your traditional cache ignores them completely. Even worse, if …
Caching Layers in 2026: CDN, App, DB, Query: What Goes Where
Book: System Design Pocket Guide: Fundamentals — Core Building Blocks for Scalable Systems Also by me: Thinking in Go (2-book series) — Complete Guide…
Web performance beyond Core Web Vitals
Originally published at thatdevpro.com . Part of ThatDevPro's open SEO + AI framework library. ThatDevPro is an SDVOSB-certified veteran-owned web + A…
Your "Cache Invalidation is Hard" Answer Misses the Real Horror
Your "Cache Invalidation is Hard" Answer Misses the Real Horror Most engineers parrot "cache invalidation is hard" as a standard interview response, b…