Kilotest: Diagnoses of ID not unique violation by HTML element 299 on California YIMBY Education Fund page

Here is how tools diagnose the ID not unique issue for HTML element 299 of the California YIMBY Education Fund 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 California YIMBY Education Fund page
  • URL: https://cayimby.org/
  • Tested on 2026-04-02 at 14:22
• About HTML element 299
  • Tag name: INPUT
  • Text: Sign Up
  • Start tag: <input type="text" name="email" id="email" placeholder="Enter your email address">
  • XPath: /html/body/div[1]/footer[1]/div[1]/div[1]/div[1]/div[1]/form[1]/input[1]
  • Bounding box: x = 352, y = 3871, width = 402, height = 48

Diagnoses

1. The first occurrence of ID email was here.

   Tool: Html Checker API (World Wide Web Consortium)