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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

January 2026

December 2025

National Archives of Ireland

	Title / URL	Issues
	Privacy Statement \| The National Archives of Irelandnationalarchives.ie/privacy-statement/	1
	Search \| The National Archives of Irelandnationalarchives.ie/search/	1
	Group Visits \| The National Archives of Irelandnationalarchives.ie/plan-a-visit/group-visits/	1
	Contact Us \| The National Archives of Irelandnationalarchives.ie/contact-us/	1
	Government Services \| The National Archives of Irelandnationalarchives.ie/government-services/	1
	Newsletter Signup \| The National Archives of Irelandnationalarchives.ie/newsletter-signup/	1
	Governing Legislation \| The National Archives of Irelandnationalarchives.ie/about/governing-legislation/	1
	Reports and Policies \| The National Archives of Irelandnationalarchives.ie/about/reports-and-policies/	1
	Cookie Policy \| The National Archives of Irelandnationalarchives.ie/cookies-policy/	1
	News and Events \| The National Archives of Irelandnationalarchives.ie/news-and-events/	1

Fix missing ARIA label IDs

National Archives of Ireland

Where this issue has occurred