WCAG 2.1.3 Keyboard (No Exception): What It Means and How to Test It

Anton StewartAuthor Reviewed September 28, 2026 against the W3C Understanding document

What WCAG 2.1.3 Requires

AAA only: the same as 2.1.1 keyboard accessibility, but with no exceptions at all, even for content that would require timed input.

Yes. AccessBell's scanner runs axe-core, which includes 1 rule that catch code-level failures of this criterion:

scrollable-region-focusable — Ensure elements that have scrollable content are accessible by keyboard in Safari (details (opens in a new tab))

Confirm every single interaction on the page, including any timing-sensitive ones, works by keyboard alone.

A timed drag interaction has no keyboard alternative, even though a lower-level keyboard exception might otherwise apply.

What does WCAG 2.1.3 require?

AAA only: the same as 2.1.1 keyboard accessibility, but with no exceptions at all, even for content that would require timed input.

Can AccessBell test WCAG 2.1.3 automatically?

Yes. AccessBell runs 1 automated rule that can catch failures of this criterion.

What level is WCAG 2.1.3?

Level AAA, added in WCAG 2.0. Level AAA is the highest, most demanding conformance level in WCAG.

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