Kilotest: Diagnoses of sizes attribute invalid violation by HTML element 715 on Future Cleantech Architects (FCA) page

Basics

About the page

• URL: https://fcarchitects.org/
• Tested 3 days ago on 2026-10-07 at 21:35 by job 261007T2113-sx8
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 12
  • Violations: 736
  • Violators: 428
  • Issues: 47
• 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 API)
• Violations: 4
• Violators: 4

About the violator

• Tag name: IMG
• Text: [not applicable]
• Start tag: <img decoding="async" srcset="https://fcarchitects.org/wp-content/uploads/2025/06/AdobeStock_77960083-300x200.jpeg 300w, https://fcarchitects.org/wp-content/uploads/2025/06/AdobeStock_77960083-1024x683.jpeg 1024w, https://fcarchitects.org/wp-content/uploads/2025/06/AdobeStock_77960083-768x512.jpeg 768w, https://fcarchitects.org/wp-content/uploads/2025/06/AdobeStock_77960083-1536x1024.jpeg 1536w, https://fcarchitects.org/wp-content/uploads/2025/06/AdobeStock_77960083-2048x1365.jpeg 2048w" src="https://fcarchitects.org/wp-content/uploads/2025/06/AdobeStock_77960083-scaled.jpeg" alt="Policy">
• XPath: [not obtained]
• Bounding box: x = 800, y = 2505, width = 360, height = 240
• Reported by Html Checker API

Diagnoses

Here is how rule engines diagnose the sizes attribute invalid issue for HTML element 715 of the Future Cleantech Architects (FCA) page.

1. When the srcset attribute has any image candidate string with a width descriptor, the sizes attribute must also be specified.

   Rule engine: Html Checker API (World Wide Web Consortium)