How to Audit Your Website for Legal Accessibility Mandates

The Importance of Accessibility Audits

Regular accessibility audits are essential for maintaining compliance with legal requirements like ADA, Section 508, and international accessibility standards. These audits identify barriers that prevent users with disabilities from accessing your website, allowing you to address issues before they result in legal action or negative user experiences.

An accessibility audit is more than a compliance check—it's an opportunity to improve your website for all users. Many accessibility improvements, like better contrast, clearer navigation, and keyboard accessibility, benefit everyone, not just users with disabilities.

Understanding Legal Requirements

Before conducting an audit, understand which legal requirements apply to your website. ADA applies to businesses serving the public in the US. Section 508 applies to federal agencies and contractors. International requirements like EN 301 549 apply in the EU. Each has specific standards, though most reference WCAG as the technical benchmark.

WCAG 2.1 Level AA is the most commonly referenced standard for legal compliance. Understanding these requirements helps you audit against the right criteria and document your compliance efforts appropriately.

WCAG Success Criteria

WCAG 2.1 Level AA includes approximately 50 success criteria organized around four principles: perceivable, operable, understandable, and robust. Your audit should test each applicable criterion against your website's pages and functionality.

Prioritize testing on high-impact pages like homepages, checkout flows, and account management. These pages are most critical for users and most likely to be scrutinized in legal proceedings.

Audit Methodology

A comprehensive accessibility audit combines automated testing, manual testing, and user testing. Each method catches different types of issues, and using all three provides the most complete picture of your website's accessibility.

Automated Testing

Start with automated testing using tools like axe, Lighthouse, or WAVE. These tools can quickly scan your website for common accessibility issues like missing alt text, insufficient color contrast, and improper heading structure. Automated tools catch about 30-40% of accessibility issues.

Run automated tests across your key pages and document all issues found. Prioritize issues by severity—critical issues that prevent users from completing tasks should be addressed first.

Manual Testing

Manual testing catches issues that automated tools miss. Test keyboard navigation by trying to complete key tasks using only the keyboard. Check that all interactive elements are keyboard-focusable and that focus indicators are visible.

Test with screen readers like NVDA (Windows), JAWS (Windows), or VoiceOver (Mac). Navigate your pages using the screen reader to ensure the content is presented in a logical order and that interactive elements are properly labeled.

Key Audit Areas

Focus your audit on areas that have the greatest impact on users and legal risk. Here are the key areas to examine in detail.

Visual Accessibility

Check color contrast ratios using a contrast checker. Normal text should have a contrast ratio of at least 4.5:1, while large text and UI components need 3:1. Ensure color isn't the only way information is conveyed—use icons, labels, or patterns in addition to color.

Verify that all images have descriptive alt text. Decorative images should have empty alt attributes so screen readers skip them. Informative images need alt text that conveys their meaning. Complex images like charts may need longer descriptions.

Keyboard Accessibility

Test all interactive elements with keyboard navigation. Ensure users can tab through elements in a logical order and that focus indicators are clearly visible. Test that all functionality can be activated using the keyboard, including dropdowns, modals, and custom controls.

Check for keyboard traps—situations where keyboard users can get stuck and can't navigate away. This is particularly common in modals and custom widgets. Ensure users can always escape using the Escape key.

Documenting Findings

Thorough documentation is essential for demonstrating good-faith compliance efforts. Document each accessibility issue found, including the page where it occurs, the WCAG criterion violated, the impact on users, and recommended remediation.

Issue Prioritization

Prioritize issues based on severity and impact. Critical issues that prevent users from completing core tasks should be addressed immediately. Issues that affect a small subset of users or have minor impact can be scheduled for later remediation.

Consider legal risk in prioritization. Issues that are commonly cited in lawsuits should be prioritized even if their user impact seems minor. This includes missing alt text, keyboard traps, and lack of skip navigation links.

Remediation Planning

Create a remediation plan based on your audit findings. The plan should include specific fixes, responsible parties, timelines, and verification methods. Address critical issues first, then work through remaining issues systematically.

Quick Wins vs. Structural Fixes

Some accessibility issues can be fixed quickly with simple changes—adding alt text, adjusting colors, or fixing form labels. These quick wins can be addressed immediately while you plan more complex structural fixes.

Structural issues like improper heading hierarchy or inaccessible component patterns may require more significant refactoring. Plan these carefully to avoid introducing new issues and ensure the fixes are sustainable long-term.

Ongoing Monitoring

Accessibility isn't a one-time project—it requires ongoing monitoring. Every new feature, content update, or design change can introduce accessibility issues. Establish processes to catch these issues before they reach production.

Integration into Development Process

Integrate accessibility testing into your development workflow. Include automated accessibility tests in your CI/CD pipeline. Require accessibility review as part of design and code review processes. Train developers on accessible coding practices.

Consider accessibility as part of your definition of done for development tasks. No feature should ship without accessibility consideration. This proactive approach prevents accessibility debt from accumulating.

User Testing with People with Disabilities

While automated and manual testing are valuable, nothing replaces testing with actual users with disabilities. Their real-world experience reveals issues that technical testing might miss and provides insight into how your accessibility solutions actually work in practice.

Recruiting Test Participants

Recruit participants with different types of disabilities—visual, hearing, motor, and cognitive. Include users who use different assistive technologies—screen readers, screen magnification, voice control, and alternative input devices.

Compensate participants fairly for their time and expertise. Their insights are invaluable and should be treated with the same professional respect as any other user research.

Conclusion

Regular accessibility audits are essential for legal compliance and inclusive design. By combining automated testing, manual testing, and user testing, you can identify and address accessibility issues systematically.

Make accessibility audits a regular part of your website maintenance schedule. Annual comprehensive audits combined with ongoing monitoring as part of development processes ensures your website remains accessible as it evolves.