โ ABOUT CARBONSCOPE
The internet's carbon footprint
is measurable. And fixable.
CarbonScope is an open-source tool that makes digital sustainability measurable. We analyze websites, report emissions in GHG Protocol format, and use AI to make the data actionable for everyone from developers to sustainability officers.
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3.7%
of global COโ from internet
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SWD v4
Carbon methodology
๐ค
GS-carbon AI
DeekSeek R1 open source model
โโ MISSION
Making digital emissions
visible and actionable
Every website transfer consumes energy. Data centers, network backbones, and user devices all draw power โ and most of that power still comes from fossil fuels. The internet emits as much COโ as the aviation industry.
CarbonScope makes that invisible cost visible. By measuring, benchmarking, and reporting digital carbon, we help developers, product teams, and sustainability officers make informed decisions about the web they build.
๐ฌ
Science-based methodology
Built on Sustainable Web Design v4 and GHG Protocol โ the same standards used for corporate sustainability reporting.
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Free and open
No paywalls. Analyze any public website instantly. The full methodology is documented and auditable.
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AI-powered insights
GS-carbon translates raw carbon data into plain-language (through DeepSeekR1 open source model) recommendations any team member can act on.
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Public ESG reports
Generate shareable sustainability pages for your site โ perfect for ESG disclosures, RFPs, and press pages.
โโ HOW IT WORKS
The carbon calculation
methodology
STEP
01
Transfer Size Analysis
We measure the total bytes transferred for a full page load โ HTML, CSS, JavaScript, fonts, images, and third-party resources. This is the primary input to the carbon calculation.
FORMULA
transferSize = ฮฃ(html + css + js + fonts + images + other)
STEP
02
Energy Calculation
Using the Sustainable Web Design v4 model, we calculate kilowatt-hours (kWh) of electricity consumed across 4 system segments: data centers (15%), networks (14%), end-user devices (52%), and hardware production (19%).
FORMULA
energyPerVisit = (transferSize / 1GB) ร 0.81 kWh/GB
STEP
03
COโ Conversion
Energy is converted to grams of COโ using grid carbon intensity (gCOโ/kWh). Green-hosted sites use a lower intensity factor (50 gCOโ/kWh) vs grey grid (442 gCOโ/kWh global average). Location-aware intensity applied when available.
FORMULA
co2 = energy ร carbonIntensity ร hostingFactor
STEP
04
GHG Scope Attribution
Emissions are attributed across GHG Protocol scopes: Scope 1 (direct โ zero for digital), Scope 2 (electricity for servers and networks), Scope 3 (user devices, hardware manufacturing, CDN infrastructure).
FORMULA
total = scope1 + scope2 + scope3
Energy constants: 0.81 kWh/GB total system energy ยท Data center: 15% ยท Network: 14% ยท Devices: 52% ยท Production: 19% ยท Grid intensity: 442 gCOโ/kWh (global avg) ยท Green hosting: 50 gCOโ/kWh
โโ STANDARDS & REFERENCES
Built on open standards
Sustainable Web Design v4 โ
Wholegrain Digital / TGWF
Core methodology for calculating website carbon emissions from transfer size.
GHG Protocol Corporate Standard โ
WRI / WBCSD
Framework for categorizing emissions into Scope 1, 2, and 3 categories.
Green Web Foundation โ
The Green Web Foundation
Database of 600+ verified green hosting providers used for hosting checks.
UN SDGs โ
United Nations
Sustainable Development Goals alignment โ SDG 7, 9, 12, and 13.
ISO 14064 โ
International Organization for Standardization
International standard for quantifying and reporting greenhouse gas emissions.
โโ TECH STACK
How CarbonScope is built
Framework
โNext.js 15 (App Router)
โTypeScript
โReact 19
Database
โMongoDB Atlas
โMongoose ODM
โConnection pooling
AI / LLM
โOpen Router
โDeepSeek R1 Open Source
โContext injection
Carbon Engine
โSWD v4 Methodology
โCO2.js library
โGHG Protocol
Green Data
โGreen Web Foundation API
โIP Geolocation (ipapi.co)
โASN database
Export
โServer-rendered HTML
โBrowser Print โ PDF
โJSON API
โโ FAQ