Kilotest: Diagnoses of ID not unique violation by HTML element 1578 on Open Secrets page

Basics

About the Open Secrets page

• URL: https://www.opensecrets.org/
• Tested 13 days ago by job 79l on 2026-05-19 at 14:37

About HTML element 1578

• Tag name: FORM
• Text: Please enter a valid email address … Subscribe
• Start tag: <form data-remote="true" data-mailchimp-form="true" class="MailChimp-form u-form js-validate " id="mc-embedded-subscribe-form-footer" name="mc-embedded-subscribe-form-footer" novalidate="">
• XPath: /html/body/div[4]/div[8]/section[1]/div[2]/div[2]/div[1]/form[1]
• Bounding box: x = 0, y = 0, width = 0, height = 0

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

Diagnoses

Here is how tools diagnose the ID not unique issue for HTML element 1578 of the Open Secrets page.

1. The element does not have a unique ID

   Tool: Alfa (Siteimprove)

   Rule: r3

2. Attribute <code>id="mc-embedded-subscribe-footer"</code> should be unique. It has been defined 4 times.

   Tool: ASLint (eSSENTIAL Accessibility)

   Rule: duplicated_id_attribute

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

   Tool: HTML CodeSniffer (Squiz Labs)

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

4. Duplicate ID mc-embedded-subscribe-form-footer.

   Tool: Html Checker API (World Wide Web Consortium)