Website carbon analysis

Every website casts a carbon shadow.

The internet now emits more carbon than the airline industry. Your site is part of that — every page load, every uncompressed image, every server it touches. We help you see the weight of yours, and what to do about it.

Free, no account needed Results in under 60 seconds Industry-standard performance & sustainability analysis

If the internet were a country, it would be the fourth-largest emitter of carbon dioxide on Earth.

1.6bn
Tonnes of CO₂ produced annually by the internet
4.6g
Average CO₂ emitted per page visit on the average website
73%
Of websites still run on grids powered by fossil fuels

How we measure your road.

A short story in five chapters. We run your URL through industry-standard tooling and translate the numbers into something you can act on.

Ch. 01

We open the door.

Your URL is checked, normalised and reached for. We confirm the page is alive and start a stopwatch — because every millisecond costs energy.

URL validation
Ch. 02

We weigh the pixels.

How heavy is your homepage? Bloated images, unminified scripts and forgotten fonts all add to the carbon cost. We measure every byte that travels.

Page weight & accessibility
Ch. 03

We ask where the power comes from.

We check whether the servers behind your site are powered by renewable energy — or burning coal in the background.

Green hosting verification
Ch. 04

We run the lab tests.

We inspect your site on simulated mobile and desktop devices, recording Core Web Vitals and surfacing the slowest moments.

Performance audit
Ch. 05

We tell you the story.

You get a single score, a clear grade, and a short list of changes ranked by the impact they'd have. No jargon — just the next step on your road.

Score & recommendations
"A lighter website is a faster website. A faster website costs less to run. And less to power."
— The premise behind The Green Road

Find out what your website weighs.

One URL. Sixty seconds. A score you can actually do something with.