How we hit 100 on Lighthouse mobile — a real checklist
Getting 100/100 on Lighthouse mobile is a discipline, not a hack. Here is the exact checklist we run on every CODMAX project.
Why 100/100 matters
A perfect Lighthouse score doesn't just look good in the pitch. It correlates strongly with lower bounce, higher conversion, and better SEO rankings in 2026.
Image discipline
Every image ships as AVIF/WebP with explicit width and height. Above-the-fold hero uses a preload hint and a low-quality placeholder for instant LCP.
Font loading strategy
Two families max, subsetted, self-hosted, and preloaded. font-display: swap on everything so text never blocks paint.
JavaScript on a diet
Code-split at the route level, lazy-load below-the-fold interactivity, and audit every third-party script — one hidden analytics tag can cost you 15 points.
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