Analyse your website's ecodesign maturity

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For decision-makers and IT professionals, ECOMETER assesses the environmental impact of your online service on all phases of its life cycle.

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ECOMETER tests 115 ecodesign best practices from the reference book published by Eyrolles, with contributions by more than 34 business experts.

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Internationally intended, conducted with ADEME's financial support, ECOMETER is community driven, open-source, free and pedagogically oriented.

The results given by this tool are for educational and diagnostic purpose only, it is not intended to compare websites.
This tool is in beta version and still in active development, all given informations may change in the future.

Best pratice examples...

From design to hosting, 115 best practices are tested and explained. Here are some examples, but be sure to check the other ones:

Development #810

Avoid expensive JavaScript/CSS animations

JavaScript/CSS animations can be very expensive in terms of CPU power and RAM usage. They all trigger actions such as (re)paint/(re)flow that consume a lot of resources. Thus avoid using animations as much as possible, and only do so when absolutely necessary.
If you must include an animation, only employ the opacity and transform CSS3 properties as well as the related functions: translate, rotate, scale and transform. These two properties are automatically optimized by the browser, and the animation can be handled by the GPU. lists the DOM-related actions triggered by an animation.
You can help the browser minimize the resources consumed by using will-change to warn it that an amination will take place.

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Development #19

Use standard typefaces

Use standard typefaces as they already exist on the user’s computer, and therefore do not need to be downloaded. This saves bandwidth and improves the website’s render time.

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With the support of


The collaborative approch of ecometer tool's creation has been supported by ADEME Bourgogne Franche-Comté within the scope of the 2015 call for projects about Circular Economy.


AER Atol Conseils & Développements Cadoles

Logomotion Planet Bourgogne Pulsar DS Bourgogne Franche-Comté Numérique