Free Tool

Free Full Site Audit: Accessibility + Design System

OverlayQA's free site audit scans any URL for two things at once: WCAG 2.2 accessibility violations and design-system token drift. It loads your page in a real browser, runs axe-core against 300+ rules plus AI visual analysis, and extracts your declared design tokens to measure how much of your rendered UI actually uses them. Enter a URL to get an accessibility score, a design-token coverage percentage, the hardcoded values that bypass your system, and your top findings. No account required.

What It Audits

• Accessibility (WCAG 2.2) — axe-core automated testing plus AI visual analysis for contrast, layout, and readability issues rule checks miss.
• Design-system coverage — extracts declared CSS custom properties (:root tokens), correlates them against the colors, type, and spacing actually rendered, and reports coverage percentage.
• Hardcoded drift — surfaces the literal values that bypass your design tokens, the leading cause of visual inconsistency as a product scales.

The Numbers

We audited 375 sites for design-token coverage and only 7.5% got it right. On accessibility, 95.9% of the top one million websites have detectable WCAG failures, averaging 56.1 errors per page (WebAIM Million, 2025). Automated scanners catch 30-40% of WCAG issues; AI visual analysis closes part of the gap.

Get the Full Extension

The free audit covers one page. The Chrome extension runs the same accessibility and design-system audit on every page as you work, points at the exact element behind each finding, and exports dev-ready issues to Jira, Linear, or Notion. Works on localhost, staging, and production.

Last updated June 2026