12.5 All HTML is valid

Assistive technologies are developed using the guidelines for valid HTML and rely on them to properly parse the code. Valid HTML gives our site the best chance of working with all assistive technologies, including those in the future.

WCAG 4.1.1: Parsing Opens in a new window

Details

• All HTML must be fully valid.

Tips

• Run an HTML validator on the fully rendered html and check that no errors exist.

Tools & Resources

• Markup Validation Service Opens in a new window