How ComplyWCAG Works Under the Hood
Designed as a modern, lightweight personalization layer that runs completely client-side in the visitor’s browser without slowing down or mutating your host website code.
Lightweight Async Load
A tiny (<15KB gzipped), non-blocking loader script fetches your verified widget configuration asynchronously, having zero negative impact on your Core Web Vitals (LCP/FID/CLS).
Client-Side Transformations
When a visitor selects a preference or profile, our modular transformation pipeline applies scoped CSS variables and DOM filters in real-time, completely reversibly and idempotently.
Privacy-Preserved Storage
Visitor settings are stored securely in their own browser's local storage. We never infer disabilities, track cross-site identity, or log personal identifiable information (PII).
Architectural Guarantees
Non-Destructive & Reversible
Every visual adjustment is applied via clean, scoped CSS classes and CSS custom properties. When a visitor toggles a setting off or resets preferences, the page instantly returns to its pristine state.
Zero Health / Disability Profiling
Our telemetry only records aggregated, anonymized interaction counts (e.g. "contrast toggled 12 times"). We never construct visitor profiles, track user health status, or capture form values.
Fast Global Edge Delivery
Widget configurations and approved runtime bundles are distributed via high-speed global Edge CDN caching, ensuring lightning-fast execution worldwide.
Assistive Technology Coexistence
Visitors who use dedicated screen readers (such as NVDA or JAWS) can easily dismiss or permanently hide the widget toolbar, ensuring zero interference with native assistive devices.