404 error

Contact us

ROCKWOOL stone wool insulation

First time visit: View without clicking anything

Corporate governance

Learn with ROCKWOOL

Sustainable Business

Events

Our stories

Case studies

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

March 2026

February 2026

Rockwool

Title / URL	Issues
404 errorwww.rockwool.com/invented-url-for-404-page/	8
Contact uswww.rockwool.com/group/contact/	8
ROCKWOOL stone wool insulationwww.rockwool.com/group/	7
First time visit: View without clicking anythingwww.rockwool.com/group/	7
Corporate governancewww.rockwool.com/group/about-us/corporate-governance/	7
Learn with ROCKWOOLwww.rockwool.com/group/advice-and-inspiration/learning/	6
Sustainable Businesswww.rockwool.com/group/about-us/sustainability/	6
Eventswww.rockwool.com/group/about-us/events/	6
Our storieswww.rockwool.com/group/about-us/news/	6
Case studieswww.rockwool.com/group/advice-and-inspiration/case-studies/	6

Fix missing ARIA label IDs

Rockwool

Where this issue has occurred