Why Accessibility Overlays Don't Work

The one-line widget promising instant compliance is a myth. Here's what actually happens — and what to do instead.

Accessibility overlays promise to make any website compliant with a single line of JavaScript. If that sounds too good to be true, it is.

Overlays attempt to detect and patch issues at runtime, but they can't understand context, fix underlying markup, or repair complex interactive components. Screen-reader users frequently report that overlays make sites harder to use, not easier.

Worse, hundreds of businesses using overlays have still been sued — and the presence of an overlay has been cited as evidence of an inaccessible underlying site.

The durable path is to fix accessibility at the source: semantic HTML, correct ARIA, logical focus order and real testing with assistive technology. That's the work OptiServe does.