Kilotest: Diagnoses of attribute value invalid violation by HTML element 25 on Effective Environmentalism page

Basics

About the page

• URL: https://effectiveenvironmentalism.org/
• Tested 3 days ago on 2026-10-07 at 21:14 by job 261007T2109-usy
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 12
  • Violations: 932
  • Violators: 375
  • 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: 33
• Violators: 33

About the violator

• Tag name: SCRIPT
• Text: [not applicable]
• Start tag: <script type="wix/htmlEmbeds" id="pageHtmlEmbeds.head start">
• XPath: /html/head[1]/script[13]
• Bounding box: [not obtained]
• Reported by Html Checker API

Diagnoses

Here is how rule engines diagnose the attribute value invalid issue for HTML element 25 of the Effective Environmentalism page.

1. Bad value pageHtmlEmbeds.head start for attribute id on element script: An ID must not contain whitespace.

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