Kilotest: Violations of sizes attribute invalid issue for Synchronicity Earth USA Annual Reports and Spotlight page

Basics

About the page

• URL: https://www.synchronicityearth.org/about-us/annualreview/
• Tested 2 days ago on 2026-10-07 at 22:06 by job 261007T2139-gxp
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 11
    • Reported any rule violations: 10
  • Violations: 499
  • Violators: 198
  • Issues: 63
• 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: 2
• Violators: 2

Violators

Here are the HTML elements reported to violate rules belonging to the sizes attribute invalid issue.

• Element 639

  • Tag name: SOURCE
  • Text: [not applicable]
  • Start tag: <source type="image/webp" data-lazy-srcset="https://www.synchronicityearth.org/wp-content/uploads/2017/12/logo-wearth-bigger_@2x-300x67.png.webp 300w, https://www.synchronicityearth.org/wp-content/uploads/2017/12/logo-wearth-bigger_@2x-540x120.png.webp 540w, https://www.synchronicityearth.org/wp-content/uploads/2017/12/logo-wearth-bigger_@2x.png.webp 541w" sizes="(max-width: 300px) 100vw, 300px">
  • XPath: /html/body/div[1]/div[3]/div[2]/footer[1]/div[1]/div[1]/div[1]/section[1]/picture[1]/source[1]
  • Bounding box: x = 375, y = 2524, width = 0, height = 18
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 737

  • Tag name: SOURCE
  • Text: [not applicable]
  • Start tag: <source type="image/webp" data-lazy-srcset="https://www.synchronicityearth.org/wp-content/uploads/2024/09/fundraisingregulator-200x89.png.webp 200w, https://www.synchronicityearth.org/wp-content/uploads/2024/09/fundraisingregulator-300x133.png.webp 300w, https://www.synchronicityearth.org/wp-content/uploads/2024/09/fundraisingregulator-400x178.png.webp 400w, https://www.synchronicityearth.org/wp-content/uploads/2024/09/fundraisingregulator-600x267.png.webp 600w, https://www.synchronicityearth.org/wp-content/uploads/2024/09/fundraisingregulator-768x342.png.webp 768w, https://www.synchronicityearth.org/wp-content/uploads/2024/09/fundraisingregulator-800x356.png.webp 800w, https://www.synchronicityearth.org/wp-content/uploads/2024/09/fundraisingregulator.png.webp 940w" sizes="(max-width: 300px) 100vw, 300px">
  • XPath: /html/body/div[1]/div[3]/div[2]/footer[1]/div[1]/div[1]/div[4]/section[2]/picture[1]/source[1]
  • Bounding box: x = 1268, y = 2756, width = 0, height = 18
  • Reported by Html Checker
  • What diagnoses were reported?