Interactive websites are never static
Modern websites load menus, banners, and sections only after interaction. A basic accessibility scan misses these dynamic elements, leaving key barriers undetected.
Web Accessibility Checker
Enter any page URL to run an accessibility test with tabnav's free checker and see whether it meets ADA, WCAG, and EAA requirements - no signup needed.
A smarter way to check website accessibility.
Our technology uses an advanced scanning approach that reflects real behavior and finds issues other checkers miss.
This leads to more accurate findings to help meet legal guidelines, with more details explained in the video.
Trusted by leading brands
Scan your website accessibility in 3 easy steps
Tabnav free online accessibility checker tests any page you enter, identifies issues, provides code-level findings, and helps you improve fast.
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Enter website URL
Paste any page URL and choose the region you want to test against global or local accessibility laws.
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Get results
View your accessibility results instantly, including your score and detailed issue breakdown.
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Share or rescan
Share results with your team or run another scan after applying improvements.
Explore Other Free Tools
Complete suite of website accessibility tools to test, monitor, and improve your site's accessibility
Web Accessibility Monitoring
Track accessibility over time. Assign fixes, collaborate with your team.
Free Accessibility Widget
Add our free accessibility widget with text, contrast, and keyboard tools.
Text Contrast Checker
Check if your text has enough contrast and meets WCAG.
Links Contrast Checker
Check if your link colors have enough contrast to be easily identified.
Image Contrast Checker
Check if text on your image meets WCAG contrast.
Global accessibility guidelines: overview and latest major updates
International web accessibility standard
Overview
Developed by the W3C, the Web Content Accessibility Guidelines (WCAG) define how to make web content accessible to people with disabilities. WCAG 2.2 adds new success criteria that improve support for cognitive, learning, vision, and mobile accessibility.
Read moreLast major update
Adds nine new success criteria (e.g., improved focus indicators, target size, authentication assistance) and removes success criterion 4.1.1 Parsing.
US law for public accommodations.
Overview
The Americans with Disabilities Act (ADA) prohibits discrimination based on disability. Title III requires businesses and organizations providing public services - including websites and digital platforms - to ensure accessibility for people with disabilities, aligning with WCAG Level AA standards.
Read moreLast major update
In April 2024, the U.S. Department of Justice issued a final rule under Title II requiring government websites and apps to comply with WCAG 2.1 AA, setting a precedent for broader ADA web enforcement.
US federal agency web accessibility law.
Overview
Section 508 of the Rehabilitation Act mandates that all electronic and information technology - including federal websites, software, and documents - must be accessible to people with disabilities. It references WCAG 2.0 Level AA as the technical standard.
Read moreLast major update
The "508 Refresh" (effective 2018) aligned requirements with WCAG 2.0. In 2023, new federal guidance clarified ongoing digital accessibility management for websites and online services.
Accessibility for Ontarians with Disabilities Act.
Overview
The AODA requires organizations in Ontario to ensure their websites and web content are accessible to people with disabilities. The law references WCAG 2.0 Level AA as the baseline and encourages upgrades to WCAG 2.2.
Read moreLast major update
Ontario continues to enforce WCAG 2.0 AA while advising organizations to align with WCAG 2.2 by 2027 as part of its modernization of digital accessibility requirements.
European web accessibility directive.
Overview
The EAA ensures that websites, e-commerce platforms, mobile apps, and digital products are accessible across all EU member states. It aligns with EN 301 549 and WCAG 2.1 Level AA.
Read moreLast major update
Member states must enforce the EAA by June 2025 to unify web and digital-service accessibility rules across Europe.
Germany's web accessibility ordinance.
Overview
BITV (Barrierefreie-Informationstechnik-Verordnung) defines accessibility requirements for public-sector websites and mobile applications. It's based on the EU Web Accessibility Directive and harmonized with WCAG 2.1 Level AA.
Read moreLast major update
BITV 2.0 entered into force in 2019, aligning Germany's national web-accessibility obligations with EN 301 549 and WCAG 2.1.
Italy's national web accessibility framework.
Overview
AGID - the Agenzia per l'Italia Digitale - oversees and enforces digital accessibility for public-sector websites and mobile applications in Italy. The requirements are defined by the Legge Stanca (Law No. 4/2004) and harmonized with WCAG 2.1 Level AA under the EU Web Accessibility Directive.
Read moreLast major update
In 2022, AGID adopted the latest accessibility technical requirements aligned with WCAG 2.1 AA and introduced stricter monitoring and reporting obligations for public-sector websites and apps. Regular compliance declarations are now mandatory through the AGID platform.
Best Practices
Learn how to meet WCAG standards with simple, expert guidance.
Do's and Don'ts
See what works and what to avoid with clear visual examples.
Real Use Cases
Explore real accessibility issues shown alongside correct implementations.
From static scans to smart website testing
Our web accessibility checker does not stop at surface code. It opens menus, clicks buttons, and reveals hidden content that standard scanners miss, exposing real accessibility issues across your website.
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The Challenge
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The Limitation
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Tabnav Solution
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The Result
What most accessibility checkers miss
Standard tools scan only visible HTML. They overlook hidden components loaded after scrolling or clicking, giving a false sense of full compliance.
Smarter Accessibility Detection
Our checker actively interacts with your website to expose issues inside dynamic content, drop-downs, and injected sections. This advanced method finds errors traditional checkers can't see.
More Accurate Accessibility Reports
Get deeper insights and see how your website truly performs for users of assistive technologies.
Check Your Website for Free
Check your website for free and uncover hidden accessibility issues traditional tools don't detect.
Expert guidance and data-driven insights on web accessibility
The tabnav blog shares practical WCAG resources, accessibility testing insights, and compliance guidance, informed by real audits and industry research.
FAQs About the Web Accessibility Checker
Here are some of the most common questions people ask about accessibility testing, audits, and online accessibility checkers.
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It scans your website to detect accessibility barriers that affect people with disabilities. The checker tests your pages against WCAG 2.1 AA guidelines and highlights issues like missing alt text, low contrast, and unlabeled form fields.
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Accessibility testing ensures your website is usable by everyone, including visitors who rely on assistive technologies. It helps you meet WCAG and ADA requirements, improves overall usability, and lowers legal risk.
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Just enter your website URL in the checker and start a free scan. Within seconds, you'll get a detailed report showing your accessibility score and easy-to-follow steps to fix issues.
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You'll see your overall score, a summary of problems by category-like navigation, forms, images, and color contrast-and practical guidance on how to fix them.
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It's best to test your website every few months or after any design or content update. Regular testing helps you stay compliant and maintain an accessible experience for all users.
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Yes. Many accessibility best practices-such as using proper headings, alt text, and clear structure-also support SEO and improve user engagement.