Kilotest: Diagnoses of attribute invalid violation by HTML element 16 on Freedom of the Press Foundation page

Here is how tools diagnose the attribute invalid issue for HTML element 16 of the Freedom of the Press Foundation page.

Basics

• About the attribute invalid issue
  • Why it matters: Item behaves improperly
  • Priority: highest
  • Related WCAG standard: 1.3.1
• About the Freedom of the Press Foundation page
  • URL: https://freedom.press/
  • Tested on 2026-04-02 at 14:24
• About HTML element 16
  • Tag name: META
  • Text: [not applicable]
  • Start tag: <meta itemprop="url" content="https://freedom.press/">
  • XPath: /html/head[1]/meta[15]
  • Bounding box: x = 0, y = 0, width = 0, height = 0

Diagnoses

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

   Tool: Html Checker API (World Wide Web Consortium)