Kilotest: Diagnoses of ID not unique violation by HTML element 255 on Earthjustice page

Here is how tools diagnose the ID not unique issue for HTML element 255 of the Earthjustice 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 Earthjustice page
  • URL: https://earthjustice.org/
  • Tested on 2026-04-02 at 14:23
• About HTML element 255
  • Tag name: LI
  • Text: Donate
  • Start tag: <li id="menu-item-6571" class="menu_button--yellow menu-item menu-item-type-custom menu-item-object-custom">
  • XPath: [not obtained]
  • Bounding box: x = 0, y = 0, width = 0, height = 0

Diagnoses

1. Duplicate id attribute value "menu-item-6571" found on the web page.

   Tool: HTML CodeSniffer (Squiz Labs)

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

2. Duplicate ID menu-item-6571.

   Tool: Html Checker API (World Wide Web Consortium)