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Web Sustainability Guidelines

Now in their ninth draft, the Web Sustainability Guidelines consist of 94 recommendations to help teams create more sustainable digital products and services. These guidelines were created by the World Wide Web Consortium's (W3C) Sustainable Web Design community group.

Select a category, tag, or individual guideline below to learn more.

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All UX Design Web Development Hosting & Infrastructure Business & Product Strategy

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3.2 Minify Your HTML, CSS, and JavaScript

Web Development

3.3 Use Code-Splitting Within Projects

Web Development

3.4 Apply Tree Shaking To Code

Web Development

3.5 Ensure Your Solutions Are Accessible

Web Development

3.6 Avoid Code Duplication

Web Development

3.7 Rigorously Assess Third-Party Services

Web Development

3.8 Use HTML Elements Correctly

Web Development

3.9 Resolve Render Blocking Content

Web Development

3.10 Provide Code-Based Way-Finding Mechanisms

Web Development

3.11 Validate Form Errors and External Input

Web Development

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Learn about W3C’s Sustainable Web Interest Group:

A global community advancing sustainability on the web.

Explore the group

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