With the ability to calculate carbon emissions for our web projects, we could actually take a step further in lowering the carbon emission.

By early 2020, the median page weight was 1.97 MB  and  1.77 MB for “mobile,” with an increasing 36 percent since January 2016 and mobile page weights nearly doubling in the same period.

Roughly half of this data transfer is image files, making images the single biggest source of carbon emissions on the average website.

You’ll find several carbon footprint calculators. According to the Website Carbon Calculator, the average web page they test produces approximately 0.5 grams of CO2 per pageview. That translates to 60 kg of CO2 per year for a website with 10,000 monthly page views.

Below you will find my favourite tools to calculate the carbon emission of each website. Try one of the following tools to see what is your impact.

• Digital Beacon is an awesome tool that I always like to use for website analysis. It shows CO2 emissions, page size and many useful tips.
• Ecograder is another tool that allows you to analyze websites. It also gives you detailed advice on how to make the site greener.
• Website Carbon is a simple tool that shows the website’s CO2 emissions compared to others and whether the site is hosted green