Kilotest: Diagnoses of heading level skipped violation by HTML element 187 on CMT Services page

Basics

About the CMT Services page

About HTML element 187

About the heading level skipped issue

Diagnoses

Here is how tools diagnose the heading level skipped issue for HTML element 187 of the CMT Services page.

  1. Heading levels should only increase by one; Heading order invalid

    Tool: Axe (Deque)

    Rule: heading-order

  2. <p>Headings and subheadings create a <a href="https://www.w3.org/WAI/tutorials/page-structure/headings/" target="_blank" title="Opens in new tab">navigable table of contents</a> for assistive devices. The numbers indicate indents in a nesting relationship:</p> <ul> <li>Heading level 1 <ul> <li>Heading level 2: a topic <ul><li>Heading level 3: a subtopic</li></ul></li> <li>Heading level 2: a new topic</li> </ul> </li> </ul> <p>This heading skipped from level 1 to level 4. From a screen reader, this sounds like content is missing.</p> <p><strong>To fix:</strong> adjust levels to form an accurate outline, without gaps.</p>

    Tool: Editoria11y (Princeton University)

    Rule: headingLevelSkipped

  3. The heading h4 (with computed level 4) follows the heading h1 (with computed level 1), skipping 2 heading levels.

    Tool: Html Checker API (World Wide Web Consortium)