Speed Is Conversion
Every 100ms delay in page load time reduces e-commerce conversion rates by 7%. In emerging digital markets where 85%+ of shoppers browse on mid-range smartphones over 4G mobile networks, performance is not an aesthetic luxury—it is the lifeblood of merchant sales.
Architectural Blueprint
- Next.js 16 App Router & Server Components: 0KB client-side JavaScript for static product catalogs and layout shells.
- Tag-Based Cache Invalidation: Product catalog pages are served directly from the CDN edge cache. When a merchant updates inventory or prices in the dashboard, background webhooks trigger surgical
revalidateTag('product-123')invalidation without rebuilding the site. - Next/Image with Modern Formats: Automatic on-the-fly conversion to AVIF and WebP with explicit layout dimension reservation to guarantee zero Cumulative Layout Shift (CLS < 0.05).
- PostgreSQL Row-Level Security (RLS): Enforces tenant isolation directly in the database query planner, avoiding expensive application-level filter layers.
Benchmarks
- Time to First Byte (TTFB): < 120ms
- First Contentful Paint (FCP): < 0.8s
- Largest Contentful Paint (LCP): < 1.4s
- Lighthouse Performance Score: 98/100 on Mobile
- Next.js 16
- Performance
- Postgres RLS
- Edge Caching