AuditJet
Technical performance guide

Advanced LCP optimization for Next.js 15 App Router architectures.

Learn how to optimize server-rendered hero images, font loading, and critical CSS to bring LCP under 2.5s for revenue-facing pages.

Optimize LCP assets

Prioritize hero images and fonts for the first meaningful paint in App Router pages.

Font loading strategy

Use preload, font-display, and native layout stability to avoid delayed LCP and cumulative shifts.

Server-rendered performance

Keep the critical path tight with optimized responses and minimal hydration payloads.

Key Next.js 15 optimizations

Preload critical fonts

Use next/font/google with display: 'swap' and preload the weights used by the hero area.

Optimize hero images

Serve the largest visible image as a Next.js optimized asset with correct priority and layout settings.

Reduce layout shifts

Reserve space for dynamic content, avoid injecting UI above the fold, and keep CLS under 0.1 for ranking stability.

Keep your Next.js landing pages fast and reliable.

AuditJet helps teams catch LCP regressions before they impact SEO and conversion on their most valuable pages.

Advanced LCP Optimization for Next.js 15 App Router | AuditJet