Aspect Typical Vibe-Coded Site After Flows123 Optimization
Rendering Server-side rendering (SSR) — browser waits for server Static pages — pre-built, instant delivery from CDN
JavaScript 2-5MB of React/framework code loaded upfront Minimal JS, only what's needed, loaded async
Images Full-size JPEGs/PNGs, not optimized WebP format, properly sized, lazy-loaded
Illustrations Raster images (PNG/JPEG) SVG vectors — crisp at any size, tiny file size
CSS Large CSS bundles, unused styles included Critical CSS inlined, rest loaded async
Fonts Multiple font files, render-blocking font-display: swap, subset fonts, preconnect
Hosting Single server location Global CDN — served from nearest edge location
SEO Files No sitemap.xml or robots.txt Auto-generated sitemap and robots.txt
Meta Tags Missing or generic meta descriptions Optimized titles, descriptions, Open Graph tags
Core Web Vitals LCP: 10-20s, Score: 20-40 LCP: <3s, Score: 95+

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