Accessibility fix guide
Duplicate ID Attribute Values
Multiple elements share the same ID value. This breaks label-input associations, ARIA references, and can cause unpredictable behavior with assistive technologies.
Issue ID: A11Y-DUP-ID-001
Severity: moderate
Impact: Med
Effort: S
Use this article when
- You need deeper remediation guidance than the issue card can show.
- You want CMS-specific steps before handing the fix to a developer.
- You want a repeatable re-check path after shipping the change.
What this issue is
Multiple elements share the same ID value. This breaks label-input associations, ARIA references, and can cause unpredictable behavior with assistive technologies.
Why it matters
Multiple elements share the same ID value. This breaks label-input associations, ARIA references, and can cause unpredictable behavior with assistive technologies. This affects usability, compliance risk, and how many visitors can successfully consume the page.
How we detect it
- FreeSiteAudit flags this issue when the rule for A11Y-DUP-ID-001 fails and the page evidence points to Dom body.
- You can usually confirm this by checking the page source or the relevant page settings inside your CMS.
Evidence examples
Check the affected page source, rendered output, or relevant CMS setting to confirm the missing or incorrect element.
How to fix it
- 1Ensure every id attribute value is unique within the page
- 2Fix label for="" attributes to reference the correct unique ID
- 3Check dynamically generated content for ID collisions
How to re-check it
- Run axe-core or validate HTML and confirm no duplicate IDs
Related tools
This issue is best verified with the full FreeSiteAudit crawl rather than a single-point mini tool.