Kilotest: Diagnoses of ID not unique violation by HTML element 887 on Prevention of Blindness Society of Metropolitan Washington page

Basics

About the Prevention of Blindness Society of Metropolitan Washington page

• URL: https://www.youreyes.org/
• Tested 43 days ago by job 8hf on 2026-06-08 at 02:19

About HTML element 887

• Tag name: svg
• Text: [not applicable]
• Start tag: <svg xmlns="http://www.w3.org/2000/svg" id="Layer_1" data-name="Layer 1" viewBox="0 0 400 400">
• XPath: [not obtained]
• Bounding box: x = 1410, y = 1890, width = 100, height = 100

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

Diagnoses

Here is how rule engines diagnose the ID not unique issue for HTML element 887 of the Prevention of Blindness Society of Metropolitan Washington page.

1. Duplicate id attribute value "Layer_1" found on the web page.

   Tool: HTML CodeSniffer (Squiz Labs)

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

2. [failed]

   Tool: QualWeb (University of Lisbon)

   Rule: QW-BP30