HTML

2.5 Ensure that navigation and wayfinding are well-structured

User Experience Design

2.11 Optimize media for sustainability

User Experience Design

2.14 Offer suitable alternatives for every format used

User Experience Design

2.15 Provide accessible, usable, minimal web forms

User Experience Design

3.2 Remove unnecessary or redundant information

Web Development

3.7 Ensure code follows good semantic practices

Web Development

3.9 Provide information to help understand the usefulness of a page

Web Development

3.10 Validate form errors and account for tooling requirements

Web Development

3.11 Structure metadata for machine readability

Web Development

4.2 Optimize caching and support offline access

Hosting, Infrastructure, and Systems