Don’t use any flashing images Accessibility Checkpoint

Description

Web pages must not contain any images that flash more than three times in any one second period.

Help

Any content that flashes more than 3 times a second can trigger seizures in people with photosensitive seizure disorders.

Applicable standards

• WCAG 2.0 (Success Criteria: 2.3.2 level AAA)
• WCAG 2.1 (Success Criteria: 2.3.2 level AAA)
• WCAG 2.2 (Success Criteria: 2.3.2 level AAA)

Change history

• 5.37 May 2020 Improved detection.
• 5.9 Jun 2015 Handle non-standard image tag.
• 5.6 Sep 2014 Now triggers WCAG 1 and Section 508 issue as well as WCAG 2.
• 5.5 May 2014 Fixed false positive on non-looping animated GIFs.
• 5.4 Feb 2014 Added.

This page describes a web site issue detected in HTML documents by SortSite Desktop and OnDemand Suite.

Rule ID: AccWcag2-2.3.2-1