Lighthouse Desktop: 100 Performance, 100 Accessibility, 100 SEO
Lighthouse Mobile: 94 Performance, 100 Accessibility, 100 SEO
CLS reduced from 0.382 to 0 (removed stats animation, added image dimensions, font-size-adjust)
FCP improved from 2.7s to 2.0s on mobile (self-hosted fonts via @fontsource)
LCP improved from 3.0s to 2.4s on mobile
Self-hosted fonts eliminate external Google Fonts request
AnalyzeTab lazy-loaded via React.lazy() (328KB -> 3.4KB initial chunk)
WebP logo (7KB vs 134KB PNG)
Non-blocking font loading with preload/swap pattern

20 mobile responsiveness fixes (touch targets, overflow, responsive layout)
Design consistency (unified cards, buttons, code blocks, padding across all pages)
WCAG contrast (text-slate-500 -> text-slate-400 for readable text)
Navbar backdrop-blur for visual separation from hero
OFL-1.1 license added to CI allow-list for fontsource packages