Website Accessibility & ADA Compliance Checker
Paste any URL and get a multi-page WCAG 2.1 AA report: 13 automated check categories, a coverage breakdown showing which of the 50 WCAG AA criteria a machine can and cannot test, and a manual test plan built from the forms, dialogs, media and widgets we find on your own pages.
Scans your homepage + up to 4 internal pages. Results in under 60 seconds.
Note: A URL scan reads server-rendered HTML, so content built by JavaScript after load is not included. For React or Next.js apps that render on the client, switch to the Paste rendered HTML tab above and paste what your browser actually shows.
What We Check
Heading Structure
Single <h1>, no skipped levels, logical outline.
WCAG 1.3.1, 2.4.6Alt Text
Missing alts, suspicious empty alts, meaningless filenames.
WCAG 1.1.1ARIA Attributes
Valid roles, accessible names, aria-hidden on focusables.
WCAG 4.1.2Keyboard Navigation
Positive tabindex, outline removal, mouse-only handlers.
WCAG 2.1.1, 2.4.7Color Contrast
Inline colour/background-color against WCAG AA thresholds.
WCAG 1.4.3Form Labels
Inputs, selects, and textareas with associated labels.
WCAG 1.3.1, 4.1.2Link Quality
Empty links, generic text, missing rel="noopener".
WCAG 2.4.4Document Structure
lang attr, title, viewport, main, duplicate IDs.
WCAG 3.1.1, 4.1.1Touch Targets
Buttons and links below 44×44 CSS pixels. This is a AAA criterion, so it sits outside AA conformance.
WCAG 2.5.5 (AAA)Media
Video captions, audio transcripts, iframe titles on embeds.
WCAG 1.2.1, 1.2.2, 4.1.2Motion & Animation
Autoplay media, <marquee>, motion without reduced-motion.
WCAG 1.4.2, 2.2.2, 2.3.3Landmarks
nav, header, footer, main structure for screen readers.
WCAG 1.3.1Timing
Auto-refresh meta tags and unadjustable time limits.
WCAG 2.2.1Frequently Asked Questions
Common questions about the website accessibility checker, ADA compliance, WCAG standards, and how the audit works.
It runs 13 categories of WCAG 2.1 AA checks across up to 5 pages of your site (homepage + 4 internal links): heading structure, alt text, ARIA, keyboard navigation, color contrast, form labels, link quality, document structure, touch targets (WCAG 2.5.5), media captions and iframe titles, motion and autoplay, landmarks, and timing / auto-refresh. The report also lists 13 items that require manual human review — criteria automation fundamentally cannot verify.
No. The checker scans your submitted URL plus up to 4 same-origin internal pages linked from it, for up to 5 pages per scan. Findings are aggregated across all pages, which is how procurement audits actually evaluate a site.
The "Automated Score" is what this tool can actually verify from the HTML. The "Estimated WCAG 2.1 AA" score multiplies that by ~30%, because published research shows automated tools can only verify about 30% of WCAG 2.1 AA success criteria. The other 70% — focus order, screen reader output, custom component semantics, reading order — require a human tester. Showing both numbers is the only honest way to present an automated result.
Yes, completely free with no sign-up required. The analysis runs in your browser after we fetch the page HTML through our server (to avoid CORS restrictions).
Browsers block cross-origin requests (CORS). Our server acts as a simple proxy that fetches the raw HTML and returns it to your browser, where all analysis happens client-side.
A URL scan reads the server-rendered HTML, so content that only appears after JavaScript runs is not included. Use the "Paste rendered HTML" tab instead: run copy(document.documentElement.outerHTML) in your browser console and paste the result. That scans exactly what your browser shows, including screens behind a login.
Each category gets a 0–100 score based on the ratio of passing elements to total elements. The overall score is a weighted average: alt text (20%), ARIA (15%), keyboard (15%), and the remaining categories 10% each.
The analysis runs in your browser, and we do not keep a copy of your page HTML. We do store the scanned URL, the report and the requesting IP address so we can give you a shareable report link and stop abuse of the scanner. If you unlock the manual review list with your email, we store that email, the URL and the scores so we can follow up about an audit. No newsletter.
The checks align with WCAG 2.1 Level AA success criteria. Each issue references the specific criterion (e.g. 1.1.1 for alt text, 2.4.6 for headings).
Yes, the fetch endpoint allows 10 requests per minute per IP to prevent abuse. For normal usage you will not hit this limit.
Why run a website accessibility audit for ADA compliance?
Web accessibility is not just a nice-to-have. ADA (Americans with Disabilities Act) lawsuits against websites have increased every year since 2018, and courts consistently point to WCAG 2.1 AA as the standard for compliance. Over one billion people worldwide live with some form of disability, and inaccessible websites exclude them from essential services, information, and opportunities.
Beyond legal compliance, accessibility overlaps with good engineering: semantic HTML, clear heading hierarchies, proper labelling, and keyboard support all improve SEO, maintainability, and user experience for everyone. Running a website accessibility checker is the fastest way to identify what needs fixing.
This accessibility checker gives you a quick snapshot across 13 WCAG categories. For a complete ADA compliance audit, combine it with our per-criterion WCAG compliance checker, browser-based tools (Lighthouse, axe DevTools), manual keyboard testing, and real screen reader testing.
Ship accessible UIs faster
Our starter kits are WCAG-AA compliant out of the box. Contrast-checked, keyboard-tested, screen-reader verified.
Browse Starter Kits