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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

September 2025

August 2025

Title / URL	Issues
Get helpwww.nottingham.ac.uk/studentservices/help/index.aspx	3
Centre for English Language Educationwww.nottingham.ac.uk/cele/index.aspx	3
Support uswww.nottingham.ac.uk/alumni/support-us/support-us.aspx	3
Homepage \| Sport \| University of Nottinghamwww.nottingham.ac.uk/sport/sport.aspx	3
University of Nottinghamwww.nottingham.ac.uk/	3
Study with us \| University of Nottinghamwww.nottingham.ac.uk/studywithus/study-with-us.aspx	3
Faculty of Engineeringwww.nottingham.ac.uk/engineering/index.aspx	3
Alumniwww.nottingham.ac.uk/alumni/alumni.aspx	3
First time visit: View without clicking anythingwww.nottingham.ac.uk/	3
Student Livingwww.nottingham.ac.uk/student-living/index.aspx	3

Fix missing ARIA label IDs

University of Nottingham

Where this issue has occurred