News for professionals | Parkinson's UK

Contact us | 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

When specifying accessible names via `aria-labelledby`, ensure that the 
label elements exist.

## Explanation

Accessible names are required for many parts of a page, including form controls.
One way to accomplish this is to use `aria-labelledby` to specify the ID or IDs of 
other elements which contain a label. For example:

```html
<h2 id="dialog-labell">Important message!</h2>
<dialog aria-labelledby="dialog-label">
```

In this example, the `aria-labelledby` for the `<dialog>` points to an ID of `dialog-label`,
which doesn't exist. The heading it refers to instead has an ID of `dialog-labell`, presumably 
a typo.

## Why this matters

It isn't usually clear when an accessible name is broken, even during user testing.

This check helps to identify where an element clearly intended to have a label, but
that label is missing.

When a label is broken, it may be impossible for a user of assistive technologies
to understand what that element does.

missing-aria-labelled-by

February 2026

January 2026

Parkinsons

	Title / URL	Issues
	News for professionals \| Parkinson's UKwww.parkinsons.org.uk/professionals/news	7
	Contact us \| Parkinson's UKwww.parkinsons.org.uk/contact	5
	Work and Parkinson's \| Parkinson's UKwww.parkinsons.org.uk/information/work	5
	Whoops! \| Parkinson's UKwww.parkinsons.org.uk/invented-url-for-404-page	5
	Par-Con: our annual community event \| Parkinson's UKwww.parkinsons.org.uk/community/par-con	5
	First time visit: View without clicking anythingwww.parkinsons.org.uk/	5
	Parkinson's UK groups \| Parkinson's UKwww.parkinsons.org.uk/community/groups	5
	Talk to us \| Parkinson's UKwww.parkinsons.org.uk/support/talk-to-us	5
	Campaign for change \| Parkinson's UKwww.parkinsons.org.uk/get-involved/campaign	5
	Events \| Parkinson's UKwww.parkinsons.org.uk/get-involved/events	5

Fix missing ARIA label IDs

Parkinsons

Where this issue has occurred