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Web Performance

All things speed and scalability on the web.

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20 Unknown HTML Tags That Will Make You Write Less And Better Code

20 Unknown HTML Tags That Will Make You Write Less And Better Code

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4 min read
Stop Using Context for State: Use an Event-Driven Pattern

Stop Using Context for State: Use an Event-Driven Pattern

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9 min read
The Elements of Browsers Rendering

The Elements of Browsers Rendering

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9 min read
Handling Thousands Cards on an Infinite Canvas

Handling Thousands Cards on an Infinite Canvas

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16 min read
APM metrics: complete guide for performance testing teams

APM metrics: complete guide for performance testing teams

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9 min read
Edge Deployment Finally Made Sense for Our Team in 2026 — Here's Why It Took This Long

Edge Deployment Finally Made Sense for Our Team in 2026 — Here's Why It Took This Long

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3 min read
Fan-Out in Social Media Feeds Explained from First Principles

Fan-Out in Social Media Feeds Explained from First Principles

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6 min read
How I optimized my SvelteKit website from 70 to 95+ on mobile Lighthouse tests

How I optimized my SvelteKit website from 70 to 95+ on mobile Lighthouse tests

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18 min read
Real-World Core Web Vitals: What Actually Impacts Business

Real-World Core Web Vitals: What Actually Impacts Business

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3 min read
Beyond Static Resources: Delta Compression for Dynamic HTML

Beyond Static Resources: Delta Compression for Dynamic HTML

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47 min read
Skills Are Overhyped. I Converted Vercel's Into Cursor Rules and Got Real Performance Wins

Skills Are Overhyped. I Converted Vercel's Into Cursor Rules and Got Real Performance Wins

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6 min read
Why AI Crawlers Need Fast, Crawlable Pages — and How to Stay Ready

Why AI Crawlers Need Fast, Crawlable Pages — and How to Stay Ready

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6 min read
Your Lighthouse Score Is Only Half the Story

Your Lighthouse Score Is Only Half the Story

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6 min read
Accessibility + Core Web Vitals: the overlooked UX wins

Accessibility + Core Web Vitals: the overlooked UX wins

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6 min read
The Need for Speed: Why Web Performance is Non-Negotiable

The Need for Speed: Why Web Performance is Non-Negotiable

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6 min read
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