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Heading Structure Analyzer
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WCAG
WCAG Success Criteria Hub
1.1.1 Non-text Content
1.2.1 Audio-only and Video-only (Prerecorded)
1.2.2 Captions (Prerecorded)
1.2.3 Audio Description or Media Alternative (Prerecorded)
1.2.4 Captions (Live)
1.2.5 Audio Description (Prerecorded)
1.2.6 Sign Language (Prerecorded)
1.2.7 Extended Audio Description (Prerecorded)
1.2.8 Media Alternative (Prerecorded)
1.2.9 Audio-only (Live)
1.3.1 Info and Relationships
1.3.2 Meaningful Sequence
1.3.3 Sensory Characteristics
1.3.4 Orientation
1.3.5 Identify Input Purpose
1.3.6 Identify Purpose
1.4.1 Use of Color
1.4.2 Audio Control
1.4.3 Contrast (Minimum)
1.4.4 Resize Text
1.4.5 Images of Text
1.4.6 Contrast (Enhanced)
1.4.7 Low or No Background Audio
1.4.8 Visual Presentation
1.4.9 Images of Text (No Exception)
1.4.10 Reflow
1.4.11 Non-text Contrast
1.4.12 Text Spacing
1.4.13 Content on Hover or Focus
2.1.1 Keyboard
2.1.2 No Keyboard Trap
2.1.3 Keyboard (No Exception)
2.1.4 Character Key Shortcuts
2.2.1 Timing Adjustable
2.2.2 Pause, Stop, Hide
2.2.3 No Timing
2.2.4 Interruptions
2.2.5 Re-authenticating
2.2.6 Timeouts
2.3.1 Three Flashes or Below Threshold
2.3.2 Three Flashes
2.3.3 Animation from Interactions
2.4.1 Bypass Blocks
2.4.2 Page Titled
2.4.3 Focus Order
2.4.4 Link Purpose (In Context)
2.4.5 Multiple Ways
2.4.6 Headings and Labels
2.4.7 Focus Visible
2.4.8 Location
2.4.9 Link Purpose (Link Only)
2.4.10 Section Headings
2.4.11 Focus Not Obscured (Minimum)
2.4.12 Focus Not Obscured (Enhanced)
2.4.13 Focus Appearance
2.5.1 Pointer Gestures
2.5.2 Pointer Cancellation
2.5.3 Label in Name
2.5.4 Motion Actuation
2.5.5 Target Size (Enhanced)
2.5.6 Concurrent Input Mechanisms
2.5.7 Dragging Movements
2.5.8 Target Size (Minimum)
3.1.1 Language of Page
3.1.2 Language of Parts
3.1.3 Unusual Words
3.1.4 Abbreviations
3.1.5 Reading Level
3.1.6 Pronunciation
3.2.1 On Focus
3.2.2 On Input
3.2.3 Consistent Navigation
3.2.4 Consistent Identification
3.2.5 Change on Request
3.2.6 Consistent Help
3.3.1 Error Identification
3.3.2 Labels or Instructions
3.3.3 Error Suggestion
3.3.4 Error Prevention (Legal, Financial, Data)
3.3.5 Help
3.3.6 Error Prevention (All)
3.3.7 Redundant Entry
3.3.8 Accessible Authentication (Minimum)
3.3.9 Accessible Authentication (Enhanced)
4.1.2 Name, Role, Value
4.1.3 Status Messages
Guides
Guides Hub
WCAG 2.1 vs 2.2
WCAG 2.2 AA Requirements
OKLCH & APCA Color Systems
Accessible Typography
React Accessibility Guide
Angular Accessibility Guide
Vue Accessibility Guide
Svelte Accessibility Guide
Mobile Accessibility Guide
Accessible AI Chat Interfaces Guide
Cognitive Accessibility & Plain Language Guide
How to Use ARIA: Roles, States & Properties
Accessible Forms Guide
Accessible Form Validation & Error Handling Guide
Keyboard Accessibility
Focus Management Guide
Accessible Tabs Guide
Accessible Accordion & Disclosure Guide
Accessible Combobox & Autocomplete Guide
Accessible Menu & Menu Button Guide
Accessible Dialog & Modal Guide
Accessible Switch & Toggle Guide
Accessible Slider & Range Input Guide
Accessible Tree View Guide
Accessible Data Grid Guide
Accessible Listbox Guide
Accessible Color Palettes
Accessible Charts & Data Visualization Guide
Accessible Data Tables Guide
Skip Links & Bypass Blocks Guide
ARIA Landmarks & Page Structure Guide
Accessible Breadcrumb Navigation Guide
Accessible Pagination Guide
Accessible Tooltip & Toggletip Guide
Accessible Notifications & Toasts Guide
Accessible Email HTML Guide
Accessible Maps & Geospatial Content Guide
Accessible Video & Media Player Guide
Screen Reader Testing
NVDA Screen Reader Testing Guide
VoiceOver Screen Reader Testing Guide
JAWS Screen Reader Testing Guide
TalkBack Screen Reader Testing Guide
ADA Website Lawsuit Cost
Accessibility Overlays
Overlay Alternatives
Automated vs Manual Testing
axe vs WAVE
PDF Accessibility
How to Audit Website Accessibility
AI Accessibility Audit
AI Accessibility Lawsuits
Fashion Nova Settlement
DOJ Title II Deadline
Section 504 Deadline
Checklists
Checklists Hub
WCAG 2.2 Checklist
WCAG 2.2 AAA Checklist
WCAG 2.2 Excel Checklist
Interactive Checklist
Learn
Component Patterns Hub
Accessible Carousels
Accessible Modals
Accessible Pagination
Accessible Search
Accessible Tables
Reference
ARIA Roles & Attributes Reference
Web Accessibility Glossary
Research
Research Hub
State of Accessibility Report
Web Accessibility by Technology Stack
Web Accessibility by Industry
Section 508 Federal Agency Assessment
US Disability Prevalence
Digital Accessibility Salary Report
European Accessibility Act Tracker
Accessibility Laws by Jurisdiction
Accessibility Lawsuit Tracker
Compliance
Compliance & Laws Hub
ADA Website Compliance
European Accessibility Act (EAA)
Section 508 Compliance
EN 301 549 Standard
California & the Unruh Act
New York Accessibility Laws
Industries
Accessibility by Industry
E-commerce Accessibility
Healthcare Accessibility
Education Accessibility
Government Accessibility
WCAG 3.0
WCAG 3.0 Guide
WCAG 3.0 vs 2.2
WCAG 3.0 Concepts
WCAG 3.0 Guidelines
Preparing for WCAG 3.0
Blog
Blog
Claude Opus 5 Is Here. Its Computer-Use Score Runs on Your Accessibility Tree.
Auditing a Native Mobile App: The Two Documents You Need
“WCAG 2.2 AA Certified” Is Not a Thing. Here Is What You Actually Bought.
How Many Pages Should an Accessibility Audit Cover? A Worked Example
WCAG-EM 2.0 Is Here: The W3C’s Audit Methodology Grows Beyond Websites
Focus Management: The Accessibility Skill Most Developers Skip
Accessibility Observability: Monitor What Users Can Actually Do
Passkeys Are Not Automatically Accessible: Design the Whole Login Journey
The Best Accessible Drag-and-Drop Interface Does Not Require Dragging
Nothing Happened: Accessibility for Loading, Empty, and Error States
The European Accessibility Act at One Year: Enforcement Begins
The DOJ Just Opposed a Website Accessibility Class Settlement
ChatGPT Is Filing ADA Lawsuits: The Pro Se Surge of 2026
The Web Is Being Made Accessible for AI, Not People
AI Promised to Fix Accessibility. It Didn’t.
WCAG 3.0’s March 2026 Draft: Outcomes Become “Requirements”
The Overlay Reckoning: UserWay Class Action Advances in 2026
HHS Delays the Section 504 Healthcare Web Accessibility Deadline
WebAIM Million 2026: Web Accessibility Is Getting Worse
DOJ Pushes ADA Title II Web Deadlines to 2027 and 2028
E-commerce Accessibility: Guide for Online Stores
Best Accessibility Testing Tools: Free & Paid Options
ADA Compliance: Website Requirements & Legal Protection
ARIA Labels and Attributes: Complete Developer Guide
Inclusive Design Principles for Accessible Experiences
Mobile Accessibility Testing: iOS & Android Guide
Screen Reader Testing: Complete Guide for Developers
WCAG 3.0: What to Expect from the New Standard
Website Accessibility Compliance: ADA & WCAG Guide
The Complete Guide to WCAG 2.2 Compliance: What Every Developer Needs to Know in 2024
Mastering Screen Reader Testing: Beyond the Basics of Assistive Technology
Building Accessible Design Systems: The Architecture of Inclusive Components
Advanced Accessibility Testing: Beyond Automated Tools and Compliance Checklists
Inclusive Design Principles: Creating Digital Experiences That Serve Human Diversity
Website Accessibility Audit Checklist: Complete Guide
Web Accessibility for Beginners: Getting Started Guide
Accessible Images and Alt Text: Complete Guide for Web Developers
Services
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