Media Planning Tools | Nielsen

Locations

Gracenote Metadata Solutions | Nielsen

Total Media Solutions | Nielsen

Data Center | Nielsen

Privacy Principles | Nielsen

Nielsen Panels | Nielsen

About | Nielsen

Page not found | Nielsen

Webinar Archives | Nielsen

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

October 2025

September 2025

Nielsen Holdings

Title / URL	Issues
Media Planning Tools \| Nielsenwww.nielsen.com/solutions/media-planning/	10
Locationswww.nielsen.com/about-us/locations/	10
Gracenote Metadata Solutions \| Nielsenwww.nielsen.com/solutions/content-metadata/	9
Total Media Solutions \| Nielsenwww.nielsen.com/solutions/	7
Data Center \| Nielsenwww.nielsen.com/data-center/	7
Privacy Principles \| Nielsenwww.nielsen.com/legal/privacy-principles/	6
Nielsen Panels \| Nielsenwww.nielsen.com/about-us/nielsen-panels/	6
About \| Nielsenwww.nielsen.com/about-us/	6
Page not found \| Nielsenwww.nielsen.com/invented-url-for-404-page	6
Webinar Archives \| Nielsenwww.nielsen.com/insights/type/webinar/	6

Fix missing ARIA label IDs

Nielsen Holdings

Where this issue has occurred