Find support at LSE

Professor Susana Mourato - LSE

DSI Annual Reports - LSE

The DSI Community - LSE

Collection highlights | LSE Library - LSE

About | LSE Library - LSE

LSE Events FAQ - LSE

Opening hours | LSE Library - LSE

Study languages at LSE and study abroad as part of your undergraduate programme - LSE

Public events - LSE

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

The London School of Economics and Political Science

Title / URL	Issues
Find support at LSEwww.lse.ac.uk/find-support	2
Professor Susana Mourato - LSEwww.lse.ac.uk/people/susana-mourato	1
DSI Annual Reports - LSEwww.lse.ac.uk/dsi/about/annual-reports	1
The DSI Community - LSEwww.lse.ac.uk/dsi/people	1
Collection highlights \| LSE Library - LSEwww.lse.ac.uk/library/collection-highlights	1
About \| LSE Library - LSEwww.lse.ac.uk/library/about	1
LSE Events FAQ - LSEwww.lse.ac.uk/events/lse-events-faqs	1
Opening hours \| LSE Library - LSEwww.lse.ac.uk/library/about/opening-hours	1
Study languages at LSE and study abroad as part of your undergraduate programme - LSEwww.lse.ac.uk/language-centre	1
Public events - LSEwww.lse.ac.uk/dsi/events/public-events-dsi	1

Fix missing ARIA label IDs

The London School of Economics and Political Science

Where this issue has occurred