Kilotest: Diagnoses of text contrast improvable violation by HTML element 712 on Virtual Science Teachers page

Basics

About the page

• URL: https://virtualscienceteachers.org/
• Tested 2 days ago on 2026-10-07 at 23:08 by job 261007T2305-1s9
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 12
  • Violations: 1118
  • Violators: 496
  • Issues: 47
• Download the full technical report (JSON)

About the issue

• Why it matters: Content is not easy to understand
• Priority: lowest
• Related WCAG standard: 1.4.6
• Reported by 7 rule engines (Alfa + ASLint + Axe + HTML CodeSniffer + Pour + QualWeb + SureA11y)
• Violations: 154
• Violators: 73

About the violator

• Tag name: A
• Text: Membrane Transport
• Start tag: <a href="https://virtualscienceteachers.org/mini-challenges-with-phet-sims/" aria-label="Explore Mini-Challenges with PhET simulations, including Membrane Transport">
• XPath: [not obtained]
• Bounding box: x = 1184, y = 1693, width = 266, height = 265
• Reported by ASLint

Diagnoses

Here is how rule engines diagnose the text contrast improvable issue for HTML element 712 of the Virtual Science Teachers page.

1. Element was excluded from scanning because it's not visible either due to being explicitly hidden or e.g. is being rendered outside of viewport, having transparency etc.

   Rule engine: ASLint (eSSENTIAL Accessibility)

   Rule: color_contrast_aaa7