Expanding WCAG Coverage with New AI-Supported Rules

What is this update about?  

We have introduced three new accessibility rules powered by AI review to expand   

WCAG coverage, reduce false positives, and improve the accuracy of Siteimprove   

accessibility testing.  

These rules are part of our ongoing effort to strengthen accessibility checks and   

improve customer experience by:  

• Expanding coverage: More WCAG issues detected automatically.  
• Reducing manual effort: AI helps validate potential issues more efficiently.  
• Improving accuracy: Fewer false positives and refined detection of interactive elements.  
• Providing flexibility: Customers can opt-in to these rules at their own pace.  

The new rules  

• SIA-R114: Page title is not descriptive
• SIA-R115: Heading is not descriptive
• SIA-R116: Summary element missing an accessible name

How to enable the new rules  

1. When you access the Accessibility module in the Siteimprove platform, you will see a notification about new rules.
2. Select Opt in to enable these rules.  
3. Once enabled, the rules are applied immediately across your sites.  
4. Your DCI Accessibility score will be updated to reflect issues detected by the new rules.  

Things to know

• The new rules are available to all customers who have access to Accessibility.
• Opt-in is temporary; once adopted widely, these rules will become part of the default Accessibility checks.  
• Opting in may impact your score as new issues are detected.