Web Sustainability Guidelines

The Web Sustainability Guidelines can help web teams create digital products and services that work better for all people and our shared planet. These guidelines were created by the World Wide Web Consortium's (W3C) Sustainable Web Interest Group.

They will be published as an official W3C Note in April 2026.

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

3.20 Reduce the number and complexity of database queries

Web Development

4.1 Use sustainable hosting

Hosting, Infrastructure, and Systems

4.2 Optimize caching and support offline access

Hosting, Infrastructure, and Systems

4.3 Reduce data transfer with compression

Hosting, Infrastructure, and Systems

4.4 Setup necessary error pages and redirection links

Hosting, Infrastructure, and Systems

4.5 Avoid maintaining unnecessary virtualized environments or containers

Hosting, Infrastructure, and Systems

4.6 Use automation wisely

Hosting, Infrastructure, and Systems

4.7 Define the frequency of data refreshes

Hosting, Infrastructure, and Systems

4.8 Back up critical data at routine intervals

Hosting, Infrastructure, and Systems

4.9 Consider the impact and requirements of data processing

Hosting, Infrastructure, and Systems

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