Kilotest: Diagnoses of attribute invalid violation by HTML element 23 on Project InnerSpace page

Basics

About the page

• URL: https://projectinnerspace.org/
• Tested 3 days ago on 2026-10-07 at 22:13 by job 261007T2147-p1y
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 12
  • Violations: 260
  • Violators: 131
  • Issues: 36
• 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: 3
• Violators: 3

About the violator

• Tag name: META
• Text: [not applicable]
• Start tag: <meta itemprop="url" content="https://www.projectinnerspace.org/" data-gatsby-head="true">
• XPath: /html/head[1]/meta[22]
• Bounding box: [not obtained]
• Reported by Html Checker

Diagnoses

Here is how rule engines diagnose the attribute invalid issue for HTML element 23 of the Project InnerSpace page.

1. The itemprop attribute was specified, but the element is not a property of any item.

   Rule engine: Html Checker (World Wide Web Consortium)