Accessibility Module
The Accessibility module provides comprehensive accessibility testing capabilities powered by Google Lighthouse. It helps teams ensure their web applications meet WCAG 2.1 and 2.2 compliance standards.
Key Features
Lighthouse-Powered Audits
- Google PageSpeed Insights API integration for accurate accessibility scoring
- Chrome Lighthouse audit engine for industry-standard testing
- Real-time analysis of web pages for accessibility issues
WCAG Compliance Testing
- WCAG 2.1 & 2.2 guideline coverage
- Three conformance levels: A, AA, and AAA
- Detailed guideline browser for understanding requirements
Visual Element Analysis
- Screenshot capture of failing elements
- CSS-based cropping for precise issue identification
- Visual comparison for before/after accessibility improvements
Project Management
- Organize audits by project
- Track statistics including total audits, issues, and severity counts
- Historical trending to monitor accessibility improvements
Module Navigation
| Page | Description |
|---|---|
| Projects | Manage accessibility testing projects |
| Audits | Run and view accessibility audits |
| WCAG Compliance | Browse WCAG guidelines and requirements |
| Reports | View historical accessibility reports |
Accessibility Score
The accessibility score is calculated on a 0-100 scale:
| Score Range | Rating | Color |
|---|---|---|
| 90-100 | Excellent | 🟢 Green |
| 50-89 | Needs Improvement | 🟡 Yellow |
| 0-49 | Poor | 🔴 Red |
Audit Categories
Accessibility audits are organized into five main categories:
- Navigation - Keyboard navigation and focus management
- Names & Labels - Proper labeling of interactive elements
- Contrast - Color contrast ratios for text readability
- Semantic HTML - Proper use of HTML elements and ARIA
- Best Practices - General accessibility best practices
Getting Started
- Create a Project - Set up a new accessibility project with your base URL
- Run an Audit - Execute a Lighthouse accessibility audit on your pages
- Review Results - Analyze the detailed report with failing elements
- Fix Issues - Address accessibility problems based on recommendations
- Re-audit - Verify fixes by running follow-up audits
Severity Levels
Issues are categorized by severity:
| Severity | Description | Impact |
|---|---|---|
| Critical | Blocks access for users with disabilities | Must fix immediately |
| Serious | Significant barriers to accessibility | High priority |
| Moderate | Issues that affect user experience | Medium priority |
Integration with Other Modules
The Accessibility module integrates with:
- TestPilot - Include accessibility tests in test runs
- Reports - Aggregate accessibility metrics in dashboards
- CI/CD - Automate accessibility testing in pipelines
