Kilotest: Diagnoses of video alternative missing violation by HTML element 237 on World Wide Web Consortium page

Here is how tools diagnose the video alternative missing issue for HTML element 237 of the World Wide Web Consortium page.

Basics

• About the video alternative missing issue
  • Why it matters: User cannot get help consuming a video recording as text or speech
  • Priority: highest
  • Related WCAG standard: 1.2.1
• About the World Wide Web Consortium page
  • URL: https://www.w3.org/
  • Tested on 2026-04-03 at 03:54
• About HTML element 237
  • Tag name: DIV
  • Text: Pause
  • Start tag: <div class="l-frame l-frame--16-9">
  • XPath: /html/body/div[1]/div[1]/main[1]/div[1]/div[1]/div[1]/div[1]/div[2]/div[1]/div[1]
  • Bounding box: x = 1020, y = 293, width = 500, height = 281

Diagnoses

1. You have not defined neither <a href="https://developer.mozilla.org/en/docs/Web/HTML/Element/track"><code><track></code></a> elements to provide descriptions nor <a href="https://developer.mozilla.org/en/docs/Web/HTML/Element/source"><code><source></code></a> with an audio as an alternative.

   Tool: ASLint (eSSENTIAL Accessibility)

   Rule: video_audio_descriptions