The Overlay Fact Sheet: 5 Things Your Sales Rep Won’t Tell You
The “Accessibility Overlay” industry has a reputation problem. For years, companies have been sold a dream: “Install this snippet and become 100% ADA compliant instantly.”
As developers, we know that’s not how the web works. If you are looking for a WCAG 2.1 compliance tool, you deserve the truth about what these tools can actually do.
1. Compliance is a Process, Not a Plugin
No widget can fix a website that is fundamentally broken at the code level. If your checkout button has no text, a widget might try to “guess” its purpose using AI, but it won’t fulfill the Americans with Disabilities Act (ADA) requirement for robust, predictable code.
2. Screen Reader Users Often Block Widgets
This is the most controversial part of the industry. Many heavy “AI-driven” overlays attempt to override the user’s native screen reader. This creates a “talking over” effect that makes the site unusable.
3. Performance Matters
Many widgets are massive 200KB+ JavaScript bundles that tank your Lighthouse score. This doesn’t just hurt your SEO; it makes the site harder to use for people on slow connections or older devices—an accessibility issue in itself.
4. Legal “Garantees” are Often Meaningless
Some providers offer “litigation insurance.” However, if you look at the fine print, these rarely cover the full cost of a settlement. The best legal defense is a site that is actually accessible.
5. The “Target” Effect
Relying solely on an overlay can sometimes act as a signal to “troll” law firms that you haven’t done the underlying work to fix your site, potentially increasing your risk of a demand letter.
Why Sienna is Different
We didn’t build Sienna to be a “magic shield.” We built it to be a UI enhancement layer.
Sienna provides the visual tools (contrast, font scaling, motion suppression) that users need, while we encourage you to fix your underlying HTML for screen reader compatibility. We focus on being ultra-lightweight and non-intrusive.
Stop buying snake oil. Start building a better web. Try Sienna Lite for free.