PageSpeed Case Studies

With Next.js, you get these types of results

Guaranteed exceptional performance

All these sites were developed with Next.js and eco-design techniques. They consistently achieve A-grade labels, proving that it is possible to combine modern design with environmental performance.

Arno Mobile

Arno Mobile

Asitewebdurable
Photography

Next.js, react-vimeo, framer-motion, react-intersection-observer

Time to Interactive

0.8s

LCP

1.2s

CLS

0.05

CO2 Footprint

15g CO2

Avantis Consulting Mobile

Avantis Consulting Mobile

Asitewebdurable
Consulting

Next.js, Contentful, framer-motion, next-seo, swiper

Time to Interactive

0.9s

LCP

1.1s

CLS

0.03

CO2 Footprint

18g CO2

Barmon Drawing Mobile

Barmon Drawing Mobile

Asitewebdurable
Art & Design

Next.js, Contentful, framer-motion, react-youtube, swiper

Time to Interactive

1.0s

LCP

1.3s

CLS

0.08

CO2 Footprint

22g CO2

Comparison: Next.js vs Traditional Solutions

❌ Traditional solutions (WordPress, etc.)

Average TTI:3.5s - 8s
Typical label:D or E
CO2 footprint:200-500g
PageSpeed score:30-60

β€’ Multiple plugins

β€’ Uncompressed resources

β€’ No code splitting

βœ… Next.js with eco-design

Average TTI:0.8s - 1.2s
Typical label:A
CO2 footprint:15-25g
PageSpeed score:90-100

β€’ Optimized and minified code

β€’ Static rendering/SSG

β€’ Automatically optimized images

β€’ Native code splitting

Technologies and techniques used

βš›οΈ

Next.js 13+

Optimized React framework with App Router

πŸ–ΌοΈ

Optimized images

WebP, AVIF, automatic lazy loading

πŸ“¦

Code Splitting

On-demand resource loading

🎨

Optimized CSS

Tailwind CSS, Critical CSS

🌐

Global CDN

Optimized resource distribution

⚑

Pre-rendering

SSG for maximum performance

πŸ”§

Modern tools

Webpack 5, SWC, ES Modules

πŸ“±

Mobile-first

Native responsive design

What our clients say

Asitewebdurable

"Since the redesign with Next.js, our site loads 5x faster. Our clients notice it and our conversion rate has increased by 30%."

Arno Dubois

Professional photographer

Asitewebdurable

"The eco-responsible approach perfectly matches our company values. We are proud to show our A-grade label to our clients."

Marie Avantis

Director, Avantis Consulting

Asitewebdurable

"Performance is exceptional even with all our animations. SEO has improved considerably."

Barmon Studio

Creative agency