Kilotest: Diagnoses of link element invalid violation by HTML element 931 on Centre for Effective Altruism page

Basics

About the Centre for Effective Altruism page

• URL: https://www.effectivealtruism.org/
• Tested 38 days ago by job 6gw on 2026-04-24 at 21:54

About HTML element 931

• Tag name: LINK
• Text: [not applicable]
• Start tag: <link rel="preload" href="https://i.ytimg.com/vi/Diuv3XZQXyc/maxresdefault.jpg" as="image">
• XPath: [not obtained]
• Bounding box: x = 0, y = 0, width = 0, height = 0

About the link element invalid issue

• Why it matters: Document fails to get a needed external resource
• Priority: highest
• Related WCAG standard: 1.3.1

Diagnoses

Here is how tools diagnose the link element invalid issue for HTML element 931 of the Centre for Effective Altruism page.

1. Link elements can only be located in the head section of the document.

   Tool: HTML CodeSniffer (Squiz Labs)

   Rule: E-WCAG2AAA.Principle2.Guideline2_4.2_4_8.H59.1