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#caching

HTTP caching strategies

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How the LRU Cache Actually Works and Why Redis, Browsers, and Postgres All Approximate It

How the LRU Cache Actually Works and Why Redis, Browsers, and Postgres All Approximate It

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4 min read
GPT-5.6 Prompting Guide: Two Defaults That Bill 1.5x and 10x More

GPT-5.6 Prompting Guide: Two Defaults That Bill 1.5x and 10x More

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5 min read
How to Design a Live Scoreboard Without Overloading Your Backend

How to Design a Live Scoreboard Without Overloading Your Backend

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2 min read
My "prompt caching" change made the bill go up — here's what I got wrong

My "prompt caching" change made the bill go up — here's what I got wrong

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5 min read
Cache Invalidation — Stale Data

Cache Invalidation — Stale Data

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10 min read
Rate Limiting — Throttling

Rate Limiting — Throttling

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16 min read
Day 3 of 30: Caching, and Why Invalidation Really Is That Hard

Day 3 of 30: Caching, and Why Invalidation Really Is That Hard

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4 min read
Beyond TTL: Explicit Cache Invalidation

Beyond TTL: Explicit Cache Invalidation

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6 min read
Suspense, partial prerendering and the Cache Components Model in NextJs

Suspense, partial prerendering and the Cache Components Model in NextJs

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9 min read
Claude Sonnet 5's New Tokenizer: 41% More Tokens per Prompt

Claude Sonnet 5's New Tokenizer: 41% More Tokens per Prompt

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8 min read
A failed read must throw, not return 0 — how Next.js ISR bakes your fallback into the cache

A failed read must throw, not return 0 — how Next.js ISR bakes your fallback into the cache

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3 min read
I slashed AI API costs by 80% with a cache that actually works

I slashed AI API costs by 80% with a cache that actually works

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3 min read
HTTP Caching for APIs: Cache-Control, max-age, and stale-while-revalidate

HTTP Caching for APIs: Cache-Control, max-age, and stale-while-revalidate

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3 min read
A Cache Key Is an Equivalence Relation

A Cache Key Is an Equivalence Relation

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3 min read
The Thundering Herd Problem (Cache Stampede) — and How to Tame It

The Thundering Herd Problem (Cache Stampede) — and How to Tame It

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5 min read
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