Performance

Making websites fast. Measured, not guessed.

2026-04-15

JavaScript Code Splitting: 3 Patterns, 2 Gotchas, 0 Guesswork

Route-based, component, and vendor code splitting with Vite and Webpack configs, real bundle sizes, and production gotchas most tutorials skip.

2026-04-06

HTTP Caching Headers Guide: The 5 You Need, 10 You Don't

Not your typical http caching headers guide—5 directives that matter, when to skip caching entirely, and where service workers take over.

2026-04-05

Font Loading Performance Optimization: Shave 2s Off LCP

Your custom fonts are probably your LCP bottleneck. Fix font loading with the right font-display value, smart preloading, and variable fonts — with metrics.

2026-03-23

Edge Computing Performance: From 600ms to 120ms TTFB (Real Data)

Your CDN is tuned but dynamic routes are still slow. Here's when edge computing actually moves the needle — and when it's expensive overkill.

2026-03-20

Image Optimization 2026: AVIF, WebP, and What Actually Moves LCP

Most image optimization guides give you 15 steps. You need 4. Here's what actually moves LCP — with real compression numbers and code.

2026-03-13

Lazy Loading Best Practices: You Made LCP Worse. Here's Why.

You added loading='lazy' to every image and your LCP got worse. Here's why — and the exact fixes to lazy load without wrecking Core Web Vitals.

2026-03-09

Third-Party Script Management: Stop Vendor Code From Killing INP

Stop vendor scripts from killing your INP score. Audit workflows, facade patterns, lazy loading strategies, and how to get marketing to let you fix it.

2026-03-06

How to Fix INP: A Practical Guide to Interaction to Next Paint

A step-by-step guide to fixing INP issues. Real code, real debugging workflows, and the fixes that actually move your Core Web Vitals score.

2026-03-05

Why Your Website Is Slow (And It's Probably Not Your Host)

Your website is slow but your hosting plan isn't the problem. Here are the real culprits — images, JavaScript, fonts — and how to fix each one.

2026-03-01

Web Performance Checklist: 20 Things to Fix Before You Ship

A web performance checklist ordered by impact. 20 fixes with real Lighthouse metrics, code examples, and honest tradeoffs for each.