Ecodesign declaration
This website was designed et developed using an eco-design approach in order to limit its environmental footprint.The approach is based on the RGESN (General Framework for Ecodesign of Digital Services) published by MiNumEco, the Eco-Responsible French Interministerial Mission and the EcoIndex measurement tool from the GreenIT collective.
Ecodesign score
- EcoIndex rating: 86,4/100
- Average water consumption reported to 1,000 users (in liters): 19.18 (i.e. 2 packs of mineral water).
- Average Greenhouse Gas (GHG) emissions reported for 1,000 users (kilos of CO2e): 1.28 (i.e. a journey of 7 km in a thermal-powered car).
Evaluation Method
Like any digital production, this website has an environmental impact which we present to you on this page using standardized indicators.
We use the EcoIndex benchmark proposed by the GreenIT.fr collective to evaluate the environmental performance of this website. This is quantified using two types of indicators:
- Level of eco-design of the website. This indicator evaluates the implementation of good practices to reduce the impact of a web page. The level achieved is represented by a relative evaluation from A to G (A is the best grade) associated with an absolute score from 0 to 100 (100 is the best grade).
- Water consumption and GHG emissions linked to page loading. This indicator quantifies fresh water consumption (cls) and GHG emissions (gCO2e) linked to the loading of a web page.
For summary purposes, four types of data are represented:
- Ecodesign level for the 5 most visited pages of the website
- Level of eco-design for 5 typical user journeys of the website
- Water consumption (expressed in liters) and GHG emissions (kilos CO2e) linked to the loading of a web page for 1 user, and reported for 1,000 users.
- Water consumption (expressed in liters) and GHG emissions (kilos CO2e) linked to the execution of a route for 1 user, and reported for 1,000 users.
What is ecodesign?
Ecodesign is based on a methodology and a set of good practices to reduce the impact of this website on its environment. Concretely, this will involve limiting the technical resources necessary to display a page or execute a functionality, while being as close as possible to the user's needs.
Are you a digital professional and want to reduce the environmental impact of your sites? Here are some good practices to implement:
Some good practices in terms of ergonomics and design
- Limit the number of features by design
- Remove unused features
- Limit the number of carousels
- Choose typographies with reduced weight
- Favor simple and clean designs
- Adopt a “mobile-first” approach when possible
- Prefer pagination to infinite scrolling
- Avoid auto-playing and loading videos and sounds
- Optimize user journeys
- …
Some best practices in content management
- Prefer images over videos
- Limit the number of images on each page
- Optimize image size to target format
- Compress images using a TinyPNG type tool
- Limit the use of animated GIFs
- Prefer glyphs to images
- …
Some good development practices
- Offer asynchronous processing when possible
- Use only essential portions of the JS and CSS libraries
- Cache frequently used calculated data
- Limit the number of calls to HTTP APIs
- Reduce the volume of stored data to what is strictly necessary
- Use the most recent version of the language
- Providing a textual alternative to multimedia content
- Trim CSS
- Do not modify the DOM when traversing it
- Use lazy loading
- Validate pages with W3C
- Add Expires or Cache-Control headers
- Compress text files: CSS, JS, HTML and SVG
- Set up an efficient sitemap