Web Accessibility Validation Overview

Aspose.HTML Cloud REST API now provides a powerful Web Accessibility Validation API to help developers ensure their HTML documents meet accessibility standards such as WCAG and Section 508. Validate your HTML for accessibility issues directly in the cloud using simple REST API calls. No software installation required.

In today's digital landscape, web accessibility isn't just good practice—it's becoming a legal requirement in many jurisdictions. Our API helps you proactively identify and fix accessibility issues before they become costly legal problems or damage your brand reputation.

The API supports validation of HTML from various sources: by direct URL, by providing HTML content, by Base64-encoded content, or by uploading a local file. Detailed reports help you identify and fix accessibility issues efficiently, with clear recommendations for remediation prioritized by impact level.

Start with a free trial today and see how easy it is to make your web content accessible to everyone, including users with visual, auditory, motor, or cognitive disabilities.

Web Accessibility API Features

  • Validate HTML for accessibility compliance with multiple standards:
    • WCAG 2.1 (Web Content Accessibility Guidelines)
    • Section 508 compliance requirements
    • Customizable validation across WCAG levels (A, AA, AAA)
  • Comprehensive validation options:
    • HTML structure and semantic validation
    • CSS accessibility validation
    • JavaScript accessibility checks
    • ARIA roles and attributes validation
    • Focus on specific HTML tags or exclude tags from validation
  • Get detailed accessibility reports with:
    • Overall pass/fail status
    • Specific rule violations with descriptions
    • Recommendations for fixing accessibility issues
    • Priority levels for remediation
  • Flexible input methods:
    • Validate by direct URL
    • Validate by raw HTML content
    • Validate by Base64-encoded HTML
    • Validate by uploading local HTML files
  • Integration capabilities:
    • RESTful API for easy integration with any platform
    • Incorporate into CI/CD pipelines for automated accessibility testing
    • Batch validation for multiple pages
    • Customizable error threshold settings

Customizable Accessibility Validation Options

Our Web Accessibility API provides extensive customization options to tailor validation to your specific needs:

WCAG Compliance Levels

  • AllLevels: Validate against all WCAG levels (A, AA, AAA)
  • LowestLevel: Check only WCAG level A compliance (essential accessibility)
  • MiddleLevel: Check only WCAG level AA compliance (standard for most websites)
  • HighestLevel: Check only WCAG level AAA compliance (highest accessibility standard)

Validation Focus Areas

  • UseHtml: Enable validation of HTML structure and semantics
  • UseCss: Enable validation of CSS for accessibility issues
  • UseScript: Enable validation of JavaScript for accessibility concerns
  • UseAria: Enable validation of ARIA attributes and roles
  • UseGeneral: Enable general accessibility validation
  • UseFailures: Check for known accessibility failures

Scope Control

  • HtmlTags: Specify which HTML tags to validate (e.g., "img,button,input")
  • ExcludeTags: Exclude specific HTML tags from validation
  • MaxErrorsPerRule: Limit the number of reported errors per rule

By combining these options, you can create targeted accessibility tests that focus on your organization's specific requirements and compliance goals.

Why Prioritize Web Accessibility?

Business Benefits

  • Broader Audience: Reach the 15-20% of the population with disabilities
  • Legal Compliance: Avoid costly lawsuits and legal actions
  • Enhanced SEO: Accessible sites typically perform better in search rankings
  • Better UX for Everyone: Accessibility improvements benefit all users
  • Corporate Social Responsibility: Demonstrate your commitment to inclusion

Technical Advantages

  • Improved Code Quality: Accessibility often leads to cleaner, better code
  • Mobile Optimization: Many accessibility features improve mobile usability
  • Future-Proofing: Build with standards that will remain relevant
  • Performance: Accessible sites often load faster and perform better
  • Voice/AI Readiness: Better prepared for voice search and AI interactions

API Use Cases & Examples

For a full overview, visit the Web Accessibility API Documentation.

  

Support and Learning Resources

  
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