Kilotest: Diagnoses of ID not unique violation by HTML element 318 on Environmental Working Group page

Basics

About the page

• URL: https://www.ewg.org/
• Tested 3 days ago on 2026-10-07 at 21:15 by job 261007T2112-2p4
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 12
  • Violations: 1488
  • Violators: 693
  • Issues: 63
• 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 3 rule engines (ASLint + Html Checker API + HTML CodeSniffer)
• Violations: 7
• Violators: 5

About the violator

• Tag name: NAV
• Text: Areas of Focus … Regional Issues
• Start tag: <nav aria-labelledby="main-menu" class="block block-menu navigation menu--main">
• XPath: [not obtained]
• Bounding box: [not obtained]
• Reported by ASLint

Take me there

Diagnoses

Here is how rule engines diagnose the ID not unique issue for HTML element 318 of the Environmental Working Group page.

1. Attribute <code>id="main-menu"</code> should be unique. It has been defined 3 times.

   Rule engine: ASLint (eSSENTIAL Accessibility)

   Rule: duplicated_id_attribute