Free • Fast • WCAG Compliant

Website Accessibility Checker

Check website accessibility and WCAG compliance with our free Website Accessibility Checker tool. Find accessibility issues, test ARIA labels, analyze color contrast, and ensure your website is accessible to all users.

WCAG
Compliance Check
Issues
Issue Detection
Speed
3-10 seconds
Price
Free

Check Website Accessibility

Enter URL(s), then click 'Check Accessibility' to analyze WCAG compliance.

Free Tier Limits

Up to 3 URLs per check

5 checks per day

4+ URLs: Requires pass

What is Website Accessibility?

Website accessibility is the practice of making websites usable by people with disabilities, including visual, auditory, motor, and cognitive impairments. Accessible websites work with assistive technologies like screen readers, provide alternative text for images, use proper heading structures, ensure keyboard navigation, and meet WCAG (Web Content Accessibility Guidelines) standards.

When websites are accessible, they can be used by people with disabilities just as effectively as by people without disabilities. This includes people who are blind or have low vision, deaf or hard of hearing, have motor impairments that limit their ability to use a mouse, have cognitive disabilities that affect how they process information, or use assistive technologies like screen readers, voice recognition software, or alternative input devices.

Website accessibility is not just about compliance—it's about inclusive design and equal access to information and services. Accessible websites benefit everyone, not just people with disabilities. For example, captions on videos help people in noisy environments, keyboard navigation helps people with temporary injuries, and clear headings help everyone understand content structure.

How Website Accessibility Works

Website accessibility involves several key principles and practices:

  1. Perceivable: Information and user interface components must be presentable to users in ways they can perceive. This includes providing text alternatives for images, captions for videos, and ensuring content can be presented in different ways without losing meaning.
  2. Operable: User interface components and navigation must be operable. This includes ensuring all functionality is available via keyboard, providing sufficient time for users to read and use content, and avoiding content that causes seizures.
  3. Understandable: Information and the operation of user interface must be understandable. This includes making text readable, ensuring content appears and operates in predictable ways, and helping users avoid and correct mistakes.
  4. Robust: Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies. This includes ensuring compatibility with current and future assistive technologies.
  5. Assistive Technologies: Accessible websites work with assistive technologies like screen readers (JAWS, NVDA, VoiceOver), voice recognition software, alternative keyboards, and switch devices that help people with disabilities interact with computers.
  6. WCAG Compliance: Websites should follow WCAG (Web Content Accessibility Guidelines) standards, which have three levels: A (minimum), AA (recommended), and AAA (highest). Most websites aim for WCAG 2.1 AA compliance.

Key Accessibility Features

🖼️Alternative Text

All images should have descriptive alt text that conveys the meaning or purpose of the image. This helps screen reader users understand images.

  • Descriptive alt text for images
  • Empty alt for decorative images
  • Alt text conveys image purpose

⌨️Keyboard Navigation

All interactive elements should be accessible via keyboard. Users should be able to navigate, activate links, and use forms without a mouse.

  • Keyboard-accessible navigation
  • Visible focus indicators
  • Logical tab order

📋Form Labels

All form controls must have associated labels. Labels help screen reader users understand what information is required and provide context for form fields.

  • Labels for all form controls
  • ARIA labels for complex forms
  • Error messages associated with fields

🎨Color Contrast

Text must have sufficient color contrast against its background. WCAG requires a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text.

  • 4.5:1 contrast for normal text
  • 3:1 contrast for large text
  • Color not sole indicator

Website accessibility serves many purposes: ensuring equal access to information and services for people with disabilities, complying with legal requirements (ADA, Section 508, EN 301 549), improving SEO (search engines favor accessible sites), providing better user experience for everyone, and expanding market reach to include people with disabilities. Understanding accessibility is essential for inclusive web design, legal compliance, and creating websites that work for everyone.

Why Website Accessibility is Important

Website accessibility is not just a nice-to-have feature—it's essential for legal compliance, inclusive design, and business success. Here's why accessibility is crucial:

1. Legal Compliance

Many countries have laws requiring websites to be accessible. In the United States, the Americans with Disabilities Act (ADA) and Section 508 of the Rehabilitation Act require federal websites and many public-facing websites to be accessible. The European Union's EN 301 549 standard requires accessibility for public sector websites. Non-compliance can result in legal action, fines, and damage to reputation.

2. Inclusive Design and Equal Access

Accessible websites ensure equal access to information and services for people with disabilities. Approximately 15% of the world's population has some form of disability. By making websites accessible, you're including millions of potential users who would otherwise be excluded. Accessible design is simply the right thing to do and demonstrates social responsibility.

3. SEO and Search Rankings

Accessible websites often rank better in search engines. Many accessibility practices improve SEO: descriptive alt text helps image search, proper heading structure helps search engines understand content hierarchy, semantic HTML helps search engines parse content, and keyboard navigation helps search engines crawl pages. Accessible websites are often more discoverable and rank higher in search results.

4. Better User Experience for Everyone

Accessible design improves user experience for everyone, not just people with disabilities. Clear headings help all users understand content structure, keyboard navigation helps users with temporary injuries, captions on videos help users in noisy environments, and good color contrast helps users with temporary vision issues. Accessible design is simply good design.

5. Business Benefits

Accessible websites provide business benefits beyond compliance. Accessible sites reach more users, potentially increasing revenue by 15-20%, reduce legal risk from accessibility lawsuits, improve brand reputation as an inclusive company, and often provide better user experience that leads to higher conversion rates. Investing in accessibility is investing in your business.

6. Future-Proofing

Accessible websites are more future-proof and compatible with emerging technologies. As new assistive technologies emerge, accessible websites are more likely to work with them. Accessible design follows web standards, making websites more maintainable and compatible with future browsers and devices. Investing in accessibility now saves time and money later.

How to Use Our Website Accessibility Checker

Our website accessibility checker makes it easy to analyze websites for accessibility issues. Follow these simple steps:

1

Enter URL

Provide the URL you want to check (e.g., https://example.com) into the input field. You can include or omit https:// - the tool will add it if missing.

2

Check Accessibility

Click the "Check Accessibility" button. Our server will analyze the website's HTML for accessibility issues. This typically takes 3-10 seconds.

3

Review Results

View the accessibility analysis including accessibility score, issues, warnings, and recommendations. Use the results to identify and fix accessibility problems.

4

Fix Issues

Address identified issues by adding alt text to images, fixing form labels, improving heading structure, and implementing other accessibility improvements.

Website Accessibility Best Practices

Proper website accessibility requires attention to detail and following best practices. Here are essential accessibility practices:

Content Accessibility

  • Add descriptive alt text to all images
  • Use proper heading hierarchy (h1-h6)
  • Provide captions for videos
  • Ensure sufficient color contrast
  • Don't rely on color alone to convey information

Navigation and Structure

  • Ensure keyboard accessibility
  • Provide skip navigation links
  • Use semantic HTML5 elements
  • Implement ARIA landmarks
  • Ensure logical tab order

Forms and Inputs

  • Label all form controls
  • Provide clear error messages
  • Use ARIA labels for complex forms
  • Ensure form validation is accessible
  • Group related form fields

Testing and Validation

  • Test with screen readers
  • Test keyboard-only navigation
  • Use automated accessibility tools
  • Validate WCAG compliance
  • Conduct manual accessibility audits

Frequently Asked Questions

How do I check website accessibility?

Enter the URL (with or without https://) in the input field, then click 'Check Accessibility'. The tool will analyze the website's HTML for accessibility issues including missing alt text, ARIA labels, heading structure, and WCAG compliance. Results typically appear within 3-10 seconds.

What is website accessibility?

Website accessibility is the practice of making websites usable by people with disabilities, including visual, auditory, motor, and cognitive impairments. Accessible websites work with assistive technologies like screen readers, provide alternative text for images, use proper heading structures, ensure keyboard navigation, and meet WCAG (Web Content Accessibility Guidelines) standards.

What are WCAG guidelines?

WCAG (Web Content Accessibility Guidelines) are international standards for web accessibility developed by the W3C. WCAG 2.1 has three levels: A (minimum), AA (recommended), and AAA (highest). The guidelines cover perceivable, operable, understandable, and robust content. Most websites aim for WCAG 2.1 AA compliance, which is often required by law in many countries.

Why is website accessibility important?

Website accessibility is important for legal compliance, inclusive design, SEO benefits, and business success. Many countries have laws requiring accessible websites. Accessible sites reach more users, improve SEO (search engines favor accessible sites), and provide better user experience for everyone. Accessible design often improves overall usability for all users.

Can I check multiple websites at once?

Batch processing (4+ URLs) requires a Processing Pass. Free tier allows checking up to 3 URLs at a time. With a Processing Pass, you can check up to 20 URLs in a single batch, making it efficient for monitoring multiple websites or your entire portfolio for accessibility compliance.

What accessibility issues does this tool check?

Our accessibility checker identifies common issues including: missing alt text on images, missing or empty title tags, missing lang attribute, improper heading structure, form controls without labels, missing ARIA landmarks, and lack of skip navigation links. The tool provides a comprehensive accessibility score and detailed recommendations for improvement.

Is this accessibility checker tool free to use?

Yes, our Website Accessibility Checker tool is free for single URL checks (up to 5 checks per day). Batch processing and higher daily limits require a Processing Pass. We aim to provide valuable tools for free while offering premium options for power users and businesses.

Related Web Tools

Explore more tools for website analysis and security: