Kilotest: Diagnoses of ID not unique violation by HTML element 1107 on Center for Responsive Politics advanced donor lookup page

Basics

About the page

• URL: https://www.opensecrets.org/donor-lookup/advanced
• Tested 3 days ago on 2026-10-07 at 20:04 by job 261007T1941-ze6
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 12
  • Violations: 1612
  • Violators: 670
  • Issues: 65
• 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 API + HTML CodeSniffer + QualWeb)
• Violations: 282
• Violators: 213

About the violator

• Tag name: INPUT
• Text: [not applicable]
• Start tag: <input class="MailChimp-input required email" type="email" value="" name="email" id="mce-EMAIL-footer" placeholder="Email address" autocomplete="home email" data-validate="email" aria-required="true" data-mailchimp-input="true" style="">
• XPath: [not obtained]
• Bounding box: x = 1000, y = 2318, width = 278, height = 48
• Reported by Html Checker API + HTML CodeSniffer + QualWeb

Diagnoses

Here is how rule engines diagnose the ID not unique issue for HTML element 1107 of the Center for Responsive Politics advanced donor lookup page.

1. Duplicate id attribute value "mce-EMAIL-footer" found on the web page.

   Rule engine: HTML CodeSniffer (Squiz Labs)

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

2. Duplicate ID mce-EMAIL-footer.

   Rule engine: Html Checker API (World Wide Web Consortium)

3. [failed]

   Rule engine: QualWeb (University of Lisbon)

   Rule: QW-BP30