Accessibility overlay alternatives

What overlays actually do, where they fall short, and how to pick a tool without buying a compliance promise nobody can keep.

What people mean by an overlay

An overlay is a script you add to your site that layers accessibility features on top of the page: a toolbar visitors can open, plus, in some products, an automated layer that tries to guess and patch problems in your markup.

The toolbar part is genuinely useful. The automated patching part is where the trouble starts, because guessing what an unlabelled button does, or what an image shows, is not something software does reliably.

Why overlays got a bad reputation

Two things happened. Some vendors marketed overlays as instant compliance, which was never true, and regulators noticed. And a large share of the sites being sued turned out to have a widget installed already, which told everyone that a script alone does not settle the underlying problems.

The lesson is not that widgets are useless. It is that a widget sold as a legal shield is a bad purchase, and a widget sold as visitor-facing help is a reasonable one.

The honest split: what a widget fixes and what it cannot

  • A widget can fix, for the visitor: low contrast, small text, cramped spacing, animation that will not stop, missing focus outlines, no reading support, sound that starts on its own.
  • A widget cannot fix: missing form labels, a keyboard trap in a custom component, wrong heading order, meaningless alt text, an inaccessible PDF, tab order that jumps around.
  • The second list lives in your code and your content, and it is the list that shows up in complaints and audits.

How to choose between the alternatives

Ask three questions of any vendor. Does the marketing promise compliance, or does it describe what the tool actually does? Is the pricing per site or flat, and what does that mean once you run more than a handful of sites? And does the product help you find your real problems, or only cover them up?

ClearPath is deliberately the second kind of tool. It gives visitors 25 adjustments across 8 profiles in 14 languages, generates your accessibility statement from a live scan, and is explicit about which findings still need a developer. We do not claim it makes a site compliant, because it does not.