Kilotest: Diagnoses of attribute value invalid violation by HTML element 96 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: Item behaves improperly
• Priority: highest
• Related WCAG standard: 1.3.1
• Reported by 1 rule engine (Html Checker)
• Violations: 1
• Violators: 1

About the violator

• Tag name: IMG
• Text: [not applicable]
• Start tag: <img src="https://cnv.event.prod.bidr.io/log/cnv?tag_id=9166&amp;buzz_key=dsp&amp;value=&amp;segment_key=dsp-41635&amp;account_id=102&amp;order=[ORDER]&amp;ord=[CACHEBUSTER]">
• XPath: /html/head[1]/img[2]
• Bounding box: [not obtained]
• Reported by Html Checker

Diagnoses

Here is how rule engines diagnose the attribute value invalid issue for HTML element 96 of the Clean Air Task Force (CATF) page.

1. Bad value https://cnv.event.prod.bidr.io/log/cnv?tag_id=9166&buzz_key=dsp&value=&segment_key=dsp-41635&account_id=102&order=[ORDER]&ord=[CACHEBUSTER] for attribute src on element img: Illegal character in query. [ is not allowed.

   Rule engine: Html Checker (World Wide Web Consortium)