GET A FREE WEBSITE CARBON REPORT
Enter your URL and email. We'll scan your website for CO₂ emissions, data transfer, and sustainability rating — then send you the full report within 24 hours.
What Does a Website Carbon Report Include?
Every time someone visits a webpage, data travels from a server through a network to a device. Each step consumes electricity — and electricity, depending on how it's generated, produces CO₂. Your report measures the total data transferred per page load and converts it into grams of CO₂ using the Sustainable Web Design (SWD) model, the industry standard for estimating digital carbon emissions.
We load the page in a real browser and intercept every network request — HTML, CSS, JavaScript, images, fonts, and third-party scripts — to give you the true weight of your page, not an estimate based on page size alone.
Your A–D Sustainability Rating
Every scan produces a letter grade based on CO₂ per page view:
A
Excellent
< 0.2g CO₂ per page view
B
Good
0.2g – 0.5g CO₂ per page view
C
Needs Work
0.5g – 1.0g CO₂ per page view
D
Poor
> 1.0g CO₂ per page view
The average website produces around 0.5g CO₂ per page view — a C rating. The top 10% of websites emit less than 0.09g.
How It Works
01
Submit your URL and email
Fill in the form above. It takes 10 seconds — no account, no credit card.
02
We scan your page
We load the URL in a real browser, intercept every network request, and calculate total data transferred and CO₂ per page view.
03
You receive your report
Within 24 hours you'll get an email with your A–D rating, CO₂ in grams, data transferred, and the key factors driving your score.
04
Want ongoing tracking?
Sign up to monitor up to 100 sites with daily automatic rescans, trend charts, and export-ready reports. $299/month — first 14 days free.
Why Website Carbon Testing Matters
The internet produces roughly 2–4% of global CO₂ emissions — comparable to the aviation industry. As businesses face pressure from investors, clients, and regulators to report on their digital footprint, website carbon measurement is quickly becoming a baseline expectation in ESG reporting.
Beyond compliance, leaner websites load faster. A page that produces 0.1g of CO₂ typically loads in under 2 seconds — better for users, better for SEO, and better for the planet.
Learn More
Want a Free Carbon Report for Your Website?
Or sign up to monitor 100 sites continuously for $299/month — first 14 days free.