Accessibility Tool · Free
Free WCAG Accessibility Check Tool
Make your website accessible to everyone with our free WCAG Accessibility Check Tool from 3FI TECH. Web Content Accessibility Guidelines (WCAG 2.1) compliance is not just a legal requirement under ADA, EN 301 549, and similar regulations worldwide — it's the right thing to do and a significant SEO signal. Inaccessible websites exclude millions of users with visual, auditory, motor, or cognitive disabilities, and increasingly expose businesses to costly litigation. Our tool scans your website for missing alt text on images, insufficient color contrast ratios, absent ARIA landmark labels, unlabeled form elements, keyboard navigation barriers, and other WCAG Level A and AA violations. Protect your business, expand your audience, and demonstrate your commitment to inclusive digital experiences.
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What is a Accessibility Check?
A WCAG accessibility check evaluates your website against the Web Content Accessibility Guidelines (WCAG) 2.1, the internationally recognized standard for web accessibility developed by the World Wide Web Consortium (W3C). WCAG is organized around four core principles — Perceivable, Operable, Understandable, and Robust (POUR) — and divided into three conformance levels: Level A (minimum), Level AA (standard legal requirement in most jurisdictions), and Level AAA (enhanced). Our accessibility checker scans your website for the most common and impactful WCAG violations including missing or empty image alt text (WCAG 1.1.1 Level A), unlabeled form inputs (WCAG 1.3.1 Level A), links without accessible text (WCAG 2.4.4 Level A), missing page language declaration (WCAG 3.1.1 Level A), absent skip navigation links (WCAG 2.4.1 Level A), missing ARIA landmark regions, insufficient focus indicators, and color contrast issues. These violations are the most commonly cited in ADA accessibility lawsuits and the most harmful to users with disabilities.
Why is Accessibility Check Important?
Web accessibility is simultaneously a legal obligation, a moral imperative, and a business opportunity. Legally, the Americans with Disabilities Act (ADA) has been consistently interpreted by US courts to apply to websites — ADA accessibility lawsuits filed against businesses reached over 4,000 cases annually in recent years. In the EU, the European Accessibility Act (EAA) mandates WCAG 2.1 AA compliance for most digital products and services by 2025. In India, the Rights of Persons with Disabilities Act (RPWD) 2016 and government IT accessibility guidelines increasingly mandate accessible digital services. Beyond legal risk, approximately 1.3 billion people worldwide live with some form of disability, and accessible websites also benefit everyone — including elderly users, users with temporary injuries, users on low-bandwidth connections, and users on mobile devices. From an SEO perspective, many accessibility improvements (alt text, semantic HTML, clear page structure) are also factors that help search engines better understand and index your content, creating a virtuous cycle of accessibility and discoverability.
How to Fix Accessibility Check Issues
Fixing WCAG violations is best approached systematically by conformance level. Start with all Level A violations as these are the most basic requirements. Add descriptive alt text to every informational image (for decorative images, use alt="" to indicate they can be ignored by screen readers). Associate every form input with a <label> element using matching for and id attributes, or use aria-label. Ensure every link has descriptive text that makes sense out of context — replace "click here" and "read more" with descriptive link text. Add lang="en" (or the appropriate language code) to your <html> element. Add a skip navigation link as the first focusable element on every page. Structure pages with semantic HTML5 elements (<main>, <nav>, <header>, <footer>, <article>, <section>) and ARIA landmark roles. Ensure all interactive elements are keyboard-accessible and have visible focus styles — never remove outline without providing an alternative. Use a color contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. For Level AA compliance, also implement responsive text that remains readable when zoomed to 200%, provide captions for video content, and ensure focus order follows a logical sequence through the page.