Heading Structure Visualization Tool

Instantly analyze and visualize heading hierarchy on any webpage

Get Started

Drag this button to your bookmarks bar:

Allyship.dev Heading Order

To install: Drag the "Heading Order" button to your bookmarks bar
Alternative method: Use the Copy button and create a new bookmark manually

WCAG Compliance

This tool helps ensure compliance with key WCAG 2.1 success criteria:

  • 1.3.1 Info and Relationships (Level A) - Ensure heading structure conveys document organization
  • 2.4.6 Headings and Labels (Level AA) - Verify that headings accurately describe their corresponding sections
  • 2.4.10 Section Headings (Level AAA) - Validate proper section organization using headings

Key Features

Visual Hierarchy Map

See the complete heading structure and identify gaps in document outline

Level Validation

Instantly spot skipped heading levels and structural issues

Dynamic Analysis

Works with dynamic content and single-page applications

Content Structure Review

Evaluate semantic structure and improve content organization

How to Use

  1. Drag the bookmarklet to your browser's bookmark bar
  2. Visit any webpage you want to analyze
  3. Click the bookmarklet to view heading structure
  4. Review the visual hierarchy and identify any issues