Kilotest: Diagnoses of code invalid violation by HTML element 0 on Tisbest Philanthropy business inquiry page

Basics

About the page

• URL: https://www.tisbest.org/business-inquiry/
• Tested 2 days ago on 2026-10-07 at 23:24 by job 261007T2305-nh6
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 11
  • Violations: 2473
  • Violators: 1163
  • Issues: 55
• Download the full technical report (JSON)

About the issue

• Why it matters: Invalid code in the page may prevent a helper from working
• Priority: high
• Related WCAG standard: 4.1
• Reported by 1 rule engine (Html Checker)
• Violations: 12
• Violators: 9

About the violator

• Tag name: HTML
• Text: [not applicable]
• Start tag: <html lang="en-US" class="" itemtype="https://schema.org/WebPage" itemscope="" style="--scrollbar-offset: 0px;">
• XPath: /html
• Bounding box: x = 0, y = 0, width = 1920, height = 1786
• Reported by Html Checker

Diagnoses

Here is how rule engines diagnose the code invalid issue for HTML element 0 of the Tisbest Philanthropy business inquiry page.

1. Bad start tag in img in noscript in head. Extract: cript[1]"><img height="1" width="1" style="display: none;" src="https://www.facebook.com/tr?id=513563893043509&ev=PageView&noscript=1" /></nosc

   Rule engine: Html Checker (World Wide Web Consortium)

   Rule: Bad start tag in img in noscript in head.

2. Saw <!-- within a comment. Probable cause: Nested comment (not allowed). Extract: noscript> <!-- End Facebook Pixel Code —> <!-- Pixel

   Rule engine: Html Checker (World Wide Web Consortium)

   Rule: Saw