Kilotest: Diagnoses of ID not unique violation by HTML element 1020 on Institute for Progress page

Here is how tools diagnose the ID not unique issue for HTML element 1020 of the Institute for Progress page.

Basics

• About the ID not unique issue
  • Why it matters: User may be pointed to the wrong item
  • Priority: highest
  • Related WCAG standard: 4.1.1
• About the Institute for Progress page
  • URL: https://ifp.org/
  • Tested on 2026-04-03 at 04:21
• About HTML element 1020
  • Tag name: DIV
  • Text: .cls-1 { … }
  • Start tag: <div class="post-listing__category-icon">
  • XPath: /html/body/main[1]/div[4]/div[1]/div[1]/div[3]/div[1]/div[1]/div[10]/a[2]/div[1]
  • Bounding box: x = 0, y = 0, width = 0, height = 0

Diagnoses

1. The element does not have a unique ID

   Tool: Alfa (Siteimprove)

   Rule: r3

2. Attribute <code>id="Working"</code> should be unique. It has been defined 21 times.

   Tool: ASLint (eSSENTIAL Accessibility)

   Rule: duplicated_id_attribute