1. Add proper alt text and title text to images.
2. Use headings properly.
3. Use ARIA landmarks. (e.g., role="navigation", role="main")
4. Add labels to form fields.
5. Group related form fields together
6. Provide sufficient color contrast.
7. Avoid using tiny fonts.
8. Respect white space.
9. Provide a visible indication of focus. (e.g., :hover, :focus)
10. Use text, not pictures of text (as possible).
11. Caption video
12. Describe the video
13. Test web pages using a keyboard
14. Giving proper title on <a> tags
15. Responsive testing
