Kilotest: Diagnoses of not exactly 1 h1 heading violation by HTML element 209 on Prometheus page

Here is how tools diagnose the not exactly 1 h1 heading issue for HTML element 209 of the Prometheus page.

Basics

• About the not exactly 1 h1 heading issue
  • Why it matters: User cannot understand the topic of the document
  • Priority: low
  • Related WCAG standard: 1.3.1
• About the Prometheus page
  • URL: https://www.joinprometheus.org/
  • Tested on 2026-04-07 at 19:19
• About HTML element 209
  • Take me there
  • Tag name: H1
  • Text: Prometheus provides technology and data services to nonprofit organizations by connecting them with student and professional volunteers.
  • Start tag: <h1 class="font_0 wixui-rich-text__text" style="font-size:30px;">
  • XPath: [not obtained]
  • Bounding box: x = 470, y = 164, width = 422, height = 210

Diagnoses

1. Consider using the h1 element as a top-level heading only — or else use the headingoffset attribute (otherwise, all h1 elements are treated as top-level headings by many screen readers and other tools).

   Tool: Html Checker API (World Wide Web Consortium)