Kilotest: Diagnoses of ID not unique violation by HTML element 892 on Wikimedia Foundation page

Basics

About the page

• URL: https://wikimediafoundation.org/
• Tested 2 days ago on 2026-10-07 at 23:16 by job 261007T2305-8ye
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 11
  • Violations: 1201
  • Violators: 392
  • Issues: 68
• 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: 74
• Violators: 38

About the violator

• Tag name: SPAN
• Text: File provided by Wikimedia Commons
• Start tag: <span id="commons-tooltip" role="tooltip">
• XPath: /html/body/div[2]/main[1]/section[1]/div[1]/div[1]/div[15]/div[2]/div[1]/a[2]/span[1]
• Bounding box: x = 1477, y = 5251, width = 71, height = 94
• Reported by Html Checker + HTML CodeSniffer + QualWeb

Diagnoses

Here is how rule engines diagnose the ID not unique issue for HTML element 892 of the Wikimedia Foundation page.

1. Duplicate id attribute value "commons-tooltip" found on the web page.

   Rule engine: HTML CodeSniffer (Squiz Labs)

   Rule: E-WCAG2AAA.Principle4.Guideline4_1.4_1_1.F77

2. Duplicate ID commons-tooltip.

   Rule engine: Html Checker (World Wide Web Consortium)

3. [failed]

   Rule engine: QualWeb (University of Lisbon)

   Rule: QW-BP30