Kilotest: Diagnoses of ID not unique violation by HTML element 453 on Freedom of the Press Foundation page

Basics

About the page

• URL: https://freedom.press/
• Tested 3 days ago on 2026-10-07 at 21:40 by job 261007T2129-eze
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 11
  • Violations: 377
  • Violators: 189
  • Issues: 43
• 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: 19
• Violators: 12

About the violator

• Tag name: FORM
• Text: Full Name … See all newsletters
• Start tag: <form action="/subscription/new/" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" target="_blank" class="mailchimp-subscribe-form" data-on-success-hide="" data-analytics-source="Footer" data-csrf-endpoint="/csrf/">
• XPath: /html/body/div[1]/section[1]/div[1]/div[1]/form[1]
• Bounding box: x = 588, y = 6514, width = 352, height = 232
• Reported by ASLint + Html Checker API + HTML CodeSniffer + QualWeb

Diagnoses

Here is how rule engines diagnose the ID not unique issue for HTML element 453 of the Freedom of the Press Foundation page.

1. Attribute <code>id="mce-error-response"</code> should be unique. It has been defined 2 times.

   Rule engine: ASLint (eSSENTIAL Accessibility)

   Rule: duplicated_id_attribute

2. Duplicate id attribute value "mc-embedded-subscribe-form" found on the web page.

   Rule engine: HTML CodeSniffer (Squiz Labs)

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

3. Duplicate ID mc-embedded-subscribe-form.

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

4. [failed]

   Rule engine: QualWeb (University of Lisbon)

   Rule: QW-BP30