Kilotest: Diagnoses of ID not unique violation by HTML element 372 on Sightsavers page

Basics

About the page

• URL: https://www.sightsavers.org/
• Tested 3 days ago on 2026-10-07 at 22:23 by job 261007T2157-uwh
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 11
  • Violations: 661
  • Violators: 289
  • Issues: 61
• Download the full technical report (JSON)

About the issue

• Why it matters: User may be pointed to the wrong item
• Priority: highest
• Related WCAG standard: 4.1
• Reported by 4 rule engines (ASLint + Html Checker + HTML CodeSniffer + QualWeb)
• Violations: 85
• Violators: 56

About the violator

• Tag name: LI
• Text: X
• Start tag: <li class="c-social__twitter">
• XPath: /html/body/header[1]/div[1]/div[1]/div[1]/nav[2]/ul[1]/li[1]/ul[1]/div[1]/div[2]/div[1]/ul[1]/li[7]
• Bounding box: [not obtained]
• Reported by ASLint

Diagnoses

Here is how rule engines diagnose the ID not unique issue for HTML element 372 of the Sightsavers page.

1. Attribute <code>id="social-icon"</code> should be unique. It has been defined 19 times.

   Rule engine: ASLint (eSSENTIAL Accessibility)

   Rule: duplicated_id_attribute