About Viterbo | Viterbo University

Nurse Practitioner DNP and Post-DNP Certificate | Viterbo

Bachelor’s Degree in Computer Science | CS Major

Visit Viterbo | Viterbo University

Library | Viterbo University

Life on Campus | Viterbo University

Education Majors and Programs | Viterbo University

Biology | Viterbo University

Master of Arts in Education | Viterbo University

Financial Aid | Viterbo University

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

Viterbo University

	Title / URL	Issues
	About Viterbo \| Viterbo Universitywww.viterbo.edu/about-viterbo	2
	Nurse Practitioner DNP and Post-DNP Certificate \| Viterbowww.viterbo.edu/dnp	2
	Bachelor’s Degree in Computer Science \| CS Majorwww.viterbo.edu/computer-science	2
	Visit Viterbo \| Viterbo Universitywww.viterbo.edu/visit	2
	Library \| Viterbo Universitywww.viterbo.edu/library	2
	Life on Campus \| Viterbo Universitywww.viterbo.edu/life-campus	2
	Education Majors and Programs \| Viterbo Universitywww.viterbo.edu/education	2
	Biology \| Viterbo Universitywww.viterbo.edu/biology	2
	Master of Arts in Education \| Viterbo Universitywww.viterbo.edu/masters-education	2
	Financial Aid \| Viterbo Universitywww.viterbo.edu/financial-aid	2

Fix missing ARIA label IDs

Viterbo University

Where this issue has occurred