Discover Parkinson's research | Parkinson's UK

Get involved | Parkinson's UK

Work and Parkinson's | Parkinson's UK

Whoops! | Parkinson's UK

Par-Con: our annual community event | Parkinson's UK

First time visit: View without clicking anything

Parkinson's UK groups | Parkinson's UK

Talk to us | Parkinson's UK

Campaign for change | Parkinson's UK

Events | Parkinson's UK

All `id` attributes on a page must be unique, or accessible technologies used by the page 
can stop working.

## Example

The duplicate `id` here makes it unclear which label belongs to which input field:

```html
<label for="name">Your name</label>
<input id="name">

<label for="name">Company name</label>
<input id="name">
```

As a result, accessible technologies like screen readers can fail to read out the 
correct text, or may read out no text at all.

Similar issues can occur when using `aria-labelledby` and `aria-describedby`.

## How to fix

Ensure all `id` attributes on a page are unique. 

## More information

See [Technique H93](https://www.w3.org/TR/2016/NOTE-WCAG20-TECHS-20161007/H93) 
for more information.

duplicate-id

February 2026

January 2026

Parkinsons

	Title / URL	Issues
	Discover Parkinson's research \| Parkinson's UKwww.parkinsons.org.uk/research/discover	12
	Get involved \| Parkinson's UKwww.parkinsons.org.uk/get-involved	10
	Work and Parkinson's \| Parkinson's UKwww.parkinsons.org.uk/information/work	10
	Whoops! \| Parkinson's UKwww.parkinsons.org.uk/invented-url-for-404-page	10
	Par-Con: our annual community event \| Parkinson's UKwww.parkinsons.org.uk/community/par-con	10
	First time visit: View without clicking anythingwww.parkinsons.org.uk/	10
	Parkinson's UK groups \| Parkinson's UKwww.parkinsons.org.uk/community/groups	10
	Talk to us \| Parkinson's UKwww.parkinsons.org.uk/support/talk-to-us	10
	Campaign for change \| Parkinson's UKwww.parkinsons.org.uk/get-involved/campaign	10
	Events \| Parkinson's UKwww.parkinsons.org.uk/get-involved/events	10

Fix duplicate IDs

Parkinsons

Where this issue has occurred