Kilotest: Diagnoses of ID not unique violation by HTML element 2846 on Cátedra UNESCO Legislación, Sociedad y Patrimonio page

Basics

About the Cátedra UNESCO Legislación, Sociedad y Patrimonio page

• URL: https://catedrapatrimonio.wixsite.com/ugto
• Tested 13 days ago by job auj on 2026-07-07 at 18:07

About HTML element 2846

• Tag name: DIV
• Text: Aula virtual … Recuento de su historia
• Start tag: <div id="comp-jg70n0x0" class="comp-jg70n0x0 PI4pSh zZMSN6" data-player="YOUTUBE" data-showcontrols="temp_show">
• XPath: [not obtained]
• Bounding box: x = 994, y = 23430, width = 363, height = 246

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 rule engines diagnose the ID not unique issue for HTML element 2846 of the Cátedra UNESCO Legislación, Sociedad y Patrimonio page.

1. Attribute <code>id="preview"</code> should be unique. It has been defined 5 times.

   Tool: ASLint (eSSENTIAL Accessibility)

   Rule: duplicated_id_attribute