co2js
Understanding the latest Sustainable Web Design Model update
This post covers the changes made in version 4 of the Sustainable Web Design Model, and how those affect the estimation results for those using this methodology.
Release Guide: CO2.js v0.15
CO2.js v0.15 gives developers access to richer information about a hosting provider when checking a domain or multiple domains for green hosting.
Release Guide: CO2.js v0.14
Type definitions for CO2.js are now available through DefinitelyTyped for TypeScript users to install in their projects.
Estimating website emissions in the italian context – Sitigreen & CO2.js
In this case study, we explore how the Sitigreen website carbon calculator uses CO2.js to perform website carbon calculations that are specific to Italian users.
Carbon Emissions in Browser DevTools – Firefox Profiler and CO2.js
In 2023, the Mozilla introduced carbon emissions estimates into its developer tooling. This case study explores how the Mozilla team and Green Web Foundation members made this possible using CO2.js.
CO2.js Case Study – Step CI
Step CI is a testing and monitoring tool for APIs. In this case study, we look at how they introduced carbon emissions estimates using CO2.js.
CO2.js Case Study – Ecograder by Mightybytes
Ecograder is one of the pioneering tools when it comes to estimating website carbon emissions. In this case study we look at the Ecograder story, and how CO2.js helped with its most recent update.
CO2.js Case Study – WebPageTest
WebPageTest is one of the most trusted web performance testing tools. This case study covers how CO2.js enables the Carbon Control feature in WebPageTest.