News & Releases | Danaher

Danaher | Global science & technology innovator

Danaher Global | Danaher

Who We Are | Danaher

Contact Us | Danaher

Our Businesses | Danaher

COVID-19 Response | Danaher

Terms of Use | Danaher

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

June 2025

May 2025

Danaher Corp.

Title / URL	Issues
News & Releases \| Danaherwww.danaher.com/news	4
Danaher \| Global science & technology innovatorwww.danaher.com/	4
Danaher Global \| Danaherwww.danaher.com/danaher-global	4
News & Releases \| Danaherwww.danaher.com/news?page=5	4
Who We Are \| Danaherwww.danaher.com/who-we-are	4
Contact Us \| Danaherwww.danaher.com/contact-us	4
News & Releases \| Danaherwww.danaher.com/news?page=3	4
Our Businesses \| Danaherwww.danaher.com/our-businesses	4
COVID-19 Response \| Danaherwww.danaher.com/covid-19-response	4
Terms of Use \| Danaherwww.danaher.com/terms-use	4

Fix missing ARIA label IDs

Danaher Corp.

Where this issue has occurred