Kilotest: Diagnoses of meta invalid violation by HTML element 27 on Prometheus page

Basics

About the Prometheus page

• URL: https://www.joinprometheus.org/
• Tested 29 days ago by job hzk on 2026-05-03 at 17:00

About HTML element 27

• Tag name: META
• Text: [not applicable]
• Start tag: <meta http-equiv="x-dns-prefetch-control" content="on">
• XPath: /html/head[1]/meta[8]
• Bounding box: x = 0, y = 0, width = 0, height = 0

About the meta invalid issue

• Why it matters: Document fails to include needed data
• Priority: high
• Related WCAG standard: 1.3.1

Diagnoses

Here is how tools diagnose the meta invalid issue for HTML element 27 of the Prometheus page.

1. Bad value x-dns-prefetch-control for attribute http-equiv on element meta.

   Tool: Html Checker API (World Wide Web Consortium)