Visual
- Does text meet minimum colour contrast requirements against its background?
- Is information ever conveyed by colour alone (e.g. red text as the only error indicator)?
- Does the site remain usable at 200% browser zoom?
Navigation & interaction
- Can every interactive element be reached and used with keyboard alone?
- Is there a visible focus indicator when tabbing through the page?
- Is there a "skip to main content" link for keyboard users?
Content
- Does every meaningful image have descriptive alt text?
- Do headings follow a logical, nested order (H1 → H2 → H3), not skipped for visual style?
- Do form fields have properly associated labels, not just placeholder text?
Media
- Do videos have captions, and audio content a transcript?
- Do auto-playing elements have an easy way to pause or stop them?
Testing
- Has the site been tested with an actual screen reader, not just an automated scanner?
- Have real users with access needs been involved, even informally?