About

purpose

The internet has a huge carbon footprint and is growing at a rapid pace. The purpose of this tool is to make the impact of web-based solutions more transparent and, ultimately, to contribute to a more sustainable internet.

get started

Use our open-source low carbon web checklist to get started with designing and developing digital solutions with a reduced carbon footprint.

the tool

WEB SUSTAINABILITY INDEX is a tool to help you understand and reduce the environmental impact of your website. It analyses the page weight, performance, energy consumption and carbon footprint of it and enables you to compare this to other websites within your industry. Most importantly, this tool uses its analysis to provide you with specific recommendations based on the Web Sustainability Guidelines 1.0 released by W3C.