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Documentation of accessibility observations for Deutsche Telekom – Mobilfunk & OneShop

1.3.1 Info and Relationships (A) Visual presentation of heading structure does not match code markup

Priority: Critical Low Page: Apple iPad Air 11 2025 Observation Permalink
Accompanying Files
Observation Details

The visually presented heading structure of "Preisübersicht" dialog window does not match the use of semantic HTML heading elements. The visually presented structure is as follows:

h1 Preisübersicht
  h2 Einmalige Zahlung
  h2 Monatliche Zahlung

The programmatically determinable heading structure, using HTML heading elements is as follows:

      h4 Einmalige Zahlung
      h4 Monatliche Zahlung

Observations:

  • Main heading in dialog window does not use HTML heading element

  • In context of dialog window, three heading levels are skipped for the HTML heading elements present

  • The headings level 4 are logically content under heading level 3 "Vorteile im Überblick"

Remediation Notes

Ensure, visually presented heading structure matches programmatically determinable heading structure by only using HTML heading elements for heading content and using HTML heading elements for all heading content.

Side note: This criterion does not specifically look at proper heading content (i.e. wordings, usefulness of headings). See 2.4.6 Headings and Labels for this.