- Images should have meaningful alternative text
- Links should be visually identifiable
- Use descriptive section headings
- Use correct semantic HTML element structure for your content
- Forms have descriptive labels
- Text and background color should have sufficient contrast
- Content scales properly when zoomed/enlarged
- Use a descriptive title tag
- Use correct HTML5 input types
- Limit or remove any flashing elements
- Site should not time out unexpectedly
- Multimedia should have alternative ways to be consumed
- Use the HTML lang attribute
- Use understandable inputs labels
- Forms have helpful and accessible error and verification messages
- Make data available for graphs, maps, SVGs, etc. through assistive technology
- Links should be descriptive and provide intent
- Table data is accessible to non-sighted users
- Decorative images should not be visible to screen readers
- Pages are understandable with no styles enabled
- Web page size should not exceed 500k
- HTML should be valid and error-free