Unyte Group: F to B Grade, 82% CO2 Reduction
A green construction firm selling carbon-cutting materials had a website that worked against their mission. We rebuilt it from the ground up. Carbon dropped 82% and their whole web presence changed.
F → B
P.E.E.R. Grade
-82%
CO2 Reduction
0.23g
CO2 Per Page Load
<1s
Load Time
The Challenge
Unyte Group builds with carbon-cutting materials like biochar, hemp, and other green options. Their mission is to shrink construction's carbon footprint through better materials and methods.
The problem: their website fought that mission. It ran on a heavy template with big images, blocking scripts, and too many third-party resources. It burned far more energy per visit than it should. For a company that sells green, the irony hurt.
Before: The Problem in Numbers
F
P.E.E.R. Grade
>2MB
Page Weight
>4s
Load Time
1.28g
CO2 Per Visit
Our Approach
We started with a full P.E.E.R. audit to find where the waste came from. Then we rebuilt the whole site from scratch. No templates, no page builders. Every line of code was written with speed as the top goal.
Hand-Coded Architecture
Full rebuild with hand-coded React and server-side meta tags. Zero template waste, zero unused CSS, zero blocking scripts.
Image Engineering
All images converted to WebP, served at the right sizes with responsive srcsets. Below-fold images lazy-load. Total image weight cut by over 90%.
Performance Infrastructure
Fast hosting with strong caching, Brotli compression, and smart resource loading. Server response under 200ms.
Carbon Budget
Every page built to a strict carbon budget: under 0.3g CO2 per view. We made content and design choices within that limit from day one.
The Results
The rebuild improved every metric that matters: speed, carbon, user experience, and search rank.
| Metric | Before | After | Change |
|---|---|---|---|
| P.E.E.R. Grade | F | B | +4 grades |
| Page Weight | >2MB | <200KB | -90% |
| Load Time (Mobile) | >4s | <1s | -75% |
| CO2 Per Page View | 1.28g | 0.23g | -82% |
| Requests Per Page | 80+ | <15 | -81% |
| Lighthouse Performance | 32 | 95+ | +197% |
| Core Web Vitals | Failing | Passing | All green |
Environmental Impact
At normal traffic levels, the new site saves real carbon on every page load:
1.05g
CO2 saved per page view
1.05kg
CO2 saved per 1,000 views
~4 miles
Equivalent driving distance saved per 1,000 views
What Unyte Group Said
"For every 1,000 page loads, our website now saves over 1KG of CO2 — equivalent to driving nearly 4 miles in an average petrol car."
Unyte Group
Construction & Sustainability
Services Used
P.E.E.R. Audit
Full speed, UX, carbon, and ranking review of the old site to find every source of waste.
Explore our audit serviceWeb Build
Full hand-coded rebuild with speed budgets, carbon limits, and zero templates.
Explore our web build serviceTechnical SEO
Schema markup, Core Web Vitals tuning, and structured data for better search rank.
Explore our SEO serviceWant Results Like These?
Every project starts with a P.E.E.R. audit. Book a free call and we will show you where your site wastes energy and loses customers.