Kilotest: Diagnoses of heading empty violation by HTML element 776 on Tradeoffs page

Basics

About the Tradeoffs page

• URL: https://tradeoffs.org/
• Tested 30 days ago by job 5g2 on 2026-06-20 at 13:59

About HTML element 776

• Tag name: H3
• Text: [not applicable]
• Start tag: <h3 class="jp-carousel-caption" itemprop="caption description">
• XPath: /html/body/div[4]/div[1]/div[3]/div[2]/div[1]/div[3]/div[1]/div[1]/h3[1]
• Bounding box: x = 0, y = 0, width = 0, height = 0

About the heading empty issue

• Why it matters: User cannot get help on the topic of a part of the document
• Priority: high
• Related WCAG standard: 2.4.6

Diagnoses

Here is how rule engines diagnose the heading empty issue for HTML element 776 of the Tradeoffs page.

1. Heading tag found with no content. Text that is not intended as a heading should not be marked up with heading tags.

   Tool: HTML CodeSniffer (Squiz Labs)

   Rule: E-WCAG2AAA.Principle1.Guideline1_3.1_3_1.H42.2

2. Empty heading.

   Tool: Html Checker API (World Wide Web Consortium)

3. Empty heading

   Tool: WAVE (Utah State University)

   Rule: heading_empty