Kilotest: Diagnoses of aria reference invalid violation by HTML element 124 on Founders Pledge page

Basics

About the page

• URL: https://www.founderspledge.com/
• Tested 3 days ago on 2026-10-07 at 21:27 by job 261007T2113-g5v
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 11
  • Violations: 485
  • Violators: 144
  • Issues: 54
• Download the full technical report (JSON)

About the issue

• Why it matters: Item behavior violates user expectations
• Priority: highest
• Related WCAG standard: 1.3.1
• Reported by 1 rule engine (Accessibility Checker)
• Violations: 3
• Violators: 3

About the violator

• Tag name: A
• Text: Membership
• Start tag: <a class="_1l465o1i _1l465o1j" id="radix-«R6db»-trigger-radix-«r3»" data-state="closed" aria-expanded="false" aria-controls="radix-«R6db»-content-radix-«r3»" data-radix-collection-item="">
• XPath: /html/body/header[1]/nav[1]/div[2]/ul[1]/li[2]/a[1]
• Bounding box: x = 996, y = 14, width = 135, height = 61
• Reported by Accessibility Checker

Take me there

Diagnoses

Here is how rule engines diagnose the aria reference invalid issue for HTML element 124 of the Founders Pledge page.

1. The 'id' "radix-«R6db»-content-radix-«r3»" specified for the ARIA property 'aria-controls' value is not valid

   Rule engine: Accessibility Checker (IBM)

   Rule: aria_id_unique