Key Takeaways
- Accessibility overlay widgets, the floating accessibility button, are marketed as instant compliance, but they do not make a site truly accessible and can raise your legal risk.
- In 2025 the US Federal Trade Commission ordered overlay vendor accessiBe to pay 1 million dollars for deceptive claims that its product could make any website compliant.
- Overlays sit on top of your site, so they cannot fix the underlying code that actually blocks disabled users, and they can clash with the assistive technology people already rely on.
- A meaningful share of accessibility lawsuits have targeted sites that already had an overlay installed, with overlays cited as a barrier rather than a solution.
- Real compliance means building accessibility into the site itself and working to the WCAG 2.2 AA standard, not bolting on a widget.
If you have ever added the little floating accessibility button to your site, you were almost certainly sold it as instant compliance and peace of mind. The reality is more uncomfortable, because these overlays do not make a site genuinely accessible and they can leave you more exposed, not less. The point was underlined in 2025 when the US Federal Trade Commission ordered the overlay vendor accessiBe to pay 1 million dollars over deceptive claims that its product could make any website compliant.
This guide explains what overlays are, why they fall short, the UK legal picture in plain terms, and what genuine accessibility actually looks like. It is meant to be practical and balanced, not alarmist.
What an accessibility overlay actually is
An overlay is a snippet of JavaScript you add to your site that loads a floating toolbar, usually a small icon in the corner. Click it and you get options like larger text, higher contrast, or a different cursor.
The pitch is appealing. One line of code, a monthly fee, and the promise that your site is now accessible and compliant. For a busy owner with a long to-do list, that sounds like a problem solved.
The trouble is what the overlay cannot reach. It sits on top of your existing site and tweaks a few surface settings. It does not change the underlying code that determines whether a screen reader user, a keyboard-only user, or someone with low vision can actually complete a task on your site.
Why overlays fall short
The core issue is simple. Most real accessibility barriers live in the code, and an overlay does not touch the code in any meaningful way.
- They only catch a fraction of the problems: automated tools detect a minority of accessibility issues, and many of the most important ones, logical structure, meaningful labels, sensible reading order, need human judgement to fix. A widget cannot supply that.
- They can clash with real assistive technology: many disabled people already use mature tools like screen readers and magnifiers. An overlay that tries to take over those functions can interfere with the software people depend on, making the experience worse.
- They create a false sense of security: the most dangerous part is the belief that the job is done. Owners install the widget, tick the box, and stop, while the real barriers stay exactly where they were.
This is why simply having an overlay offers little protection. Data on accessibility litigation shows a notable share of lawsuits have targeted sites that already had an overlay installed, with the overlays cited as part of the barrier rather than the fix, according to UsableNet's tracking of digital accessibility lawsuits.
The UK legal picture, in plain terms
You do not need to be a lawyer to understand your obligations here, and they are more settled than many owners realise.
- The Equality Act 2010: this places a duty on businesses to make reasonable adjustments so disabled people can use your services, and that includes your website. A widget that leaves the underlying site inaccessible does not discharge that duty.
- WCAG 2.2 AA is the practical benchmark: the Web Content Accessibility Guidelines are the recognised standard, and AA level is what regulators, public bodies, and courts generally look to. We cover the wider detail in our guide to website accessibility laws in the UK.
- The European Accessibility Act: if you sell goods or services into the EU, this applies to you even from the UK, and it raises the bar for accessibility on consumer-facing digital services.
The direction of travel is clear. Accessibility is shifting from a nice-to-have to a baseline expectation, and an overlay is not a credible answer to it.
What real accessibility looks like
Genuine compliance is built into the site rather than bolted on, and it is more achievable than the legal language makes it sound. It comes down to a few solid practices.
- Proper structure: clean, semantic code with correct headings and labels so screen readers can make sense of the page.
- Sufficient contrast: text and key elements that are readable for people with low vision, checked against the WCAG ratios rather than guessed.
- Full keyboard operation: every function usable without a mouse, because plenty of people navigate entirely by keyboard.
- Descriptive labels and alt text: buttons, links, and images that make sense when read aloud, not generic placeholders.
- Testing with real assistive technology: a single automated scan is not enough. Real testing checks how the site behaves with screen readers and keyboard navigation.
The honest way to start is an audit. Our website audit and consultation checks your site against WCAG 2.2 AA and tells you where the real gaps are, and our dedicated accessibility and WCAG compliance work then fixes them in the code. If your site is old enough that retrofitting is a struggle, that is often a sign it is due a wider rethink, which we cover in our piece on the signs your website needs a redesign.
Frequently Asked Questions
Do accessibility overlay widgets make my website compliant? No. Overlays can adjust a few surface things like text size and contrast, but they cannot fix the underlying code problems that block disabled users, such as missing labels, poor structure, and keyboard traps. Automated tools only catch a portion of accessibility issues, so a widget alone leaves the real barriers in place.
Are accessibility widgets legal in the UK? Using one is not illegal, but relying on one for compliance is a mistake. Under the Equality Act 2010 you have a duty to make reasonable adjustments so disabled people can use your services, and a bolt-on widget does not discharge that duty if the underlying site is still inaccessible. The practical benchmark regulators and courts look to is WCAG 2.2 to AA level.
Can an accessibility widget get me sued? It can certainly fail to protect you, and it can draw attention. A notable share of accessibility lawsuits have targeted sites that already had an overlay installed, and overlays have been cited as a barrier rather than a fix. A widget that promises compliance it does not deliver gives a complainant an easy story to tell.
What is WCAG and which version should I follow? WCAG stands for the Web Content Accessibility Guidelines, the internationally recognised standard for accessible websites. The practical target for most businesses is WCAG 2.2 at AA level, which covers things like colour contrast, keyboard access, clear labels, and content that works with assistive technology like screen readers.
What does real accessibility compliance involve? Real compliance means building and fixing accessibility into the site itself: proper semantic structure, sufficient contrast, full keyboard operation, descriptive labels and alt text, and content that works with screen readers. It usually starts with an audit against WCAG 2.2 AA, followed by fixes in the code, and testing with real assistive technology rather than a single automated scan.
The Bottom Line
Accessibility overlays sell a shortcut that does not exist. They tweak the surface, leave the real barriers in the code, can interfere with the tools disabled people already use, and they have not stopped sites being sued. The 1 million dollar FTC order against accessiBe was a clear signal that selling instant compliance is a claim that does not hold up. Genuine accessibility is built into the site, measured against WCAG 2.2 AA, and it serves real people while protecting you far better than any widget.
If you are relying on an overlay and want to know where you really stand, get in touch and we will give you a straight assessment. From there we can run proper accessibility and WCAG compliance work, or start with a full website audit and consultation to map out exactly what needs fixing.
