Users must be able to access the content as technologies advance (as technologies and user agents evolve, the content should remain accessible).

Information and user interface components must be presentable to users in ways they can perceive. This means that users must be able to perceive the information being presented (it can't be invisible to all of their senses).

2 Guidelines

Is your Content Robust

The questions below are designed to assist you in determining if your website, application, and/or content is robust to people with disabilities. Each question is linked to in-depth information, resources, and examples on how to apply the guidelines to our products.


To ensure proper parsing, is website/application code complete, according to specifications, nested correctly, free of duplicate attributes, and are all IDs unique? (Success Criterion 4.1.1 – Level A)

Name, Role, Value:

In your platform/content, are there any interface components that have been developed or scripted internally that may not provide name, role, and value appropriately? (Success Criterion 4.1.2 – Level A)