How to hit 90–100/100 Lighthouse in Next.js (without breaking design)

next.js6 min readDecember 31, 2025

Author: 7kar7son7

TL;DR

  • lighthouse 100 next.js
  • For landing pages and brochure sites that want better SEO and conversions.

Who this is for

  • For landing pages and brochure sites that want better SEO and conversions.

Keyword (SEO)

  • lighthouse 100 next.js

LCP: hero

  • Preload critical assets
  • fetchpriority=high for LCP
  • No lazy on LCP element

Cut JS

  • Lazy load heavy components
  • Remove scroll animations
  • Fewer third-party scripts

Fonts & images

  • display=swap
  • WebP/AVIF
  • Correct cache-control

Want this implemented for your business?

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About the author

Developer at DevStudio.it. Focused on performance, SEO and production-ready web apps.

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