Person holding an iPad saying “Hurrah! This web page is cleaner than 95% of the web pages tested.”
“Hurrah! This web page is cleaner than 95% of the web pages tested.”

Estimating website carbon emissions

We encourage adoption of a standardized approach to website carbon calculations, for more clarity, understanding, and to prevent greenwashing. To calculate the emission of a web page, we use these data points:

  • Data transfer over the wire
  • Energy intensity of web data
  • Energy source used by the data center
  • Carbon intensity of electricity
  • Website traffic

Website Carbon Calculator – How does it work?