Kilotest: Violations of invalid at-rule issue for Cátedra UNESCO Legislación, Sociedad y Patrimonio page

Basics

About the Cátedra UNESCO Legislación, Sociedad y Patrimonio page

• URL: https://catedrapatrimonio.wixsite.com/ugto
• Tested 12 days ago by job auj on 2026-07-07 at 18:07

About the invalid at-rule issue

• Why it matters: Document cannot be properly displayed in particular contexts
• Priority: high
• Related WCAG standard: 4.1
• Reported by 1 rule engine (Html Checker API)
• 1 violator was reported

Violators

Here are the HTML elements reported to violate rules belonging to the invalid at-rule issue.

• Element 0

  • XPath: /html
  • Tag name: HTML
  • Reported by Html Checker API
  • What diagnoses were reported?