Tag: frontend

Zero JavaScript on Load Cost Us 400 Milliseconds on the First Click. The Page Already Knew How to Get Them Back.

We moved 16 production sites from React to Qwik 2: 1-2 scripts on load instead of 22, first paint twice as fast. Then the first click took 400 ms to 1.6 s. A 1 KB idle warm-up that reads the chunk names the page already carries brought it to 56-90 ms, plus two deploy traps and one benchmark that lied.

Your Users Download 1.5MB of JavaScript to See a Landing Page. We Fixed It With an If Statement.

How we split a React SPA into public (400KB), auth (150KB), and private (1.5MB) bundles — selected server-side by URL path, built with Bun, zero framework required.