Kilotest: Violations of invalid at-rule
issue for Prometheus page
Basics
About the Prometheus page
- URL: https://www.joinprometheus.org/
- Tested 29 days ago by job
hzkon 2026-05-03 at 17:00
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 tool (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
- XPath: