Kilotest: Diagnoses of element in head invalid violation by HTML element 693 on Clean Air Task Force (CATF) page

Basics

About the page

• URL: https://www.catf.us/
• Tested 3 days ago on 2026-10-07 at 19:52 by job 261007T1941-eso
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 12
  • Violations: 697
  • Violators: 328
  • Issues: 52
• Download the full technical report (JSON)

About the issue

• Why it matters: Browser processes the page improperly
• Priority: high
• Related WCAG standard: 4.1
• Reported by 2 rule engines (ASLint + Testaro)
• Violations: 3
• Violators: 2

About the violator

• Tag name: HEAD
• Text: [not applicable]
• Start tag: [not obtained]
• XPath: /html/head
• Bounding box: [not obtained]
• Reported by Testaro

Diagnoses

Here is how rule engines diagnose the element in head invalid issue for HTML element 693 of the Clean Air Task Force (CATF) page.

1. Invalid elements within the head: IMG, IMG

   Rule engine: Testaro (CVS Health)

   Rule: headEl