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 #44

Make DOM elements invisible during modification

When several properties of a DOM (Document Object Model) element must be modified, each style or content change will generate a repaint or a reflow. It is therefore usually more economical to:
- make the element invisible (set display to none) (1 reflow) - modify the element properties and then make it visible again (1 reflow)

Thus resulting in a maximum of 2 reflows.

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Development #61

Use a templating engine

Templating engines, like Smarty and Twig, almost always provide a system for caching compiled templates in a binary file containing an intermediate code called bytecode.
This often considerably reduces CPU usage, especially when an intermediate code cache is added to the templating engine’s cache system.

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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