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Accessibility Testing at W3C

TPAC 2025
Kobe, Japan & online
10–14 November 2025

Problems with current approach

What do we mean by "accessibility testing"?

Testing conformance

Testing browser accessibility

WPT = Web Platform Tests

Testing conformance

ACT = Accessibility Conformance Testing

Accessibility supported

Definition of accessibility supported starts with:

supported by users' assistive technologies as well as the accessibility features in browsers and other user agents

Testing accessibility support (I)

Testing accessibility support (II)

Open questions