ecometer

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.

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:

Hosting #45

Avoid redirections

Redirections should be avoided as much as possible as they slow down response and drain resources unnecessarily. These redirections can take place on various levels: HTML code, JavaScript code, HTTP server and application server (e.g. PHP).

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Development #170

Keep the number of domains serving resources to a minimum

When a website or online service hosts a web page’s components across several domains, the browser has to establish an HTTP connection with every single one. Once the HTML page has been retrieved, the browser calls the sources as it traverses the DOM (Document Object Model).

Some resources are essential for the page to work. If they are hosted on another domain which is slow, it may increase the page’s render time. You should therefore, when possible, group all resources on a single domain.

The only exception to this is for static resources (style sheets, images, etc.), which should be hosted on a separate domain to avoid sending one or multiple cookies for each browser GET HTTP request. This reduces response time and unnecessary bandwidth consumption.

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