About the guidelines

What are the W3C Web Sustainability guidelines?

Web Sustainability Guidelines(WSG) are a set of best practices published by the W3C, The World Wide Web Consortium (https://www.w3.org/). It is a document, that formalizes existing best practices from the industry. The guidelines are designed to help digital product and service creators make their digital products more sustainable, prioritizing people and the planet

Who created the guidelines

The Web Sustainability Guidelines were developed by web sustainability experts, based on measurable, evidence-based research. The draft was edited by Tim Frick (from Mightybites, author of Designing for Sustainability), and Alexander Dawson, more than 50 professionals and organisations contributed to the knowledge base.

Why are the W3C Web Sustainability guidelines important

Why should we care about the guidelines?

Will the web sustainability guidelines become obligatory?

Probably not soon, but I can imagine them being translated into some enforceable industry standard someday. In the EU, sustainability reporting has been mandatory for large companies since January 1, 2024. While it might take time to extend to smaller businesses, understanding and minimizing impacts is increasingly important. With climate change posing an undeniable threat, initiatives to reduce carbon emissions are becoming crucial across all industries.

How to implement the W3C web sustainability guidelines

How can we use these guidelines?

The guidelines are divided into four sections: UX Design, Web Development, Infrastructure and Hosting Systems, and Business Strategy and Product Management. While interrelated, they are separated to facilitate implementation by different professionals and teams. So depending on your or your team's specialization, you can decide to learn about possible actions and success criteria in that particular domain. These sections are not exhaustive but serve as prompts to consider and minimize impact at each step of the work process.

What resources and tools are available to help you adopt these guidelines?

Each guideline, and there are 93 of them, comes not only with a checklist of actions but also with resources to learn more about the particular guideline. There are also examples being added to illustrate the implementation of best practices. There is also a growing body of literature, videos, and other resources to help us understand the impacts and implement solutions to minimize them.


On this this platform you can easily filter the guidelines by your area, and also more easily find those that can have a high impact while requiring low effort, ie. to find a low-hanging fruit of minimizing the impact of your website and make it simpler to start with the implementation wherever you are.


Please keep in mind that this platform is work in progress and new and improved features will be added continuosly