R.B. Annis School of Engineering | UIndy

College of Education and Behavioral Sciences | UIndy

College of Health Sciences | UIndy

The School of Business | UIndy

School of Social Work and Counseling | UIndy

The School of Education | UIndy

Women's Executive Leadership Institute | UIndy

Krannert School of Physical Therapy Home | UIndy

Page Not Found | UIndy

University of Indianapolis

All `id` attributes on a page must be unique, or accessible technologies used by the page 
can stop working.

## Example

The duplicate `id` here makes it unclear which label belongs to which input field:

```html
<label for="name">Your name</label>
<input id="name">

<label for="name">Company name</label>
<input id="name">
```

As a result, accessible technologies like screen readers can fail to read out the 
correct text, or may read out no text at all.

Similar issues can occur when using `aria-labelledby` and `aria-describedby`.

## How to fix

Ensure all `id` attributes on a page are unique. 

## More information

See [Technique H93](https://www.w3.org/TR/2016/NOTE-WCAG20-TECHS-20161007/H93) 
for more information.

duplicate-id

February 2026

January 2026

	Title / URL	Issues
	R.B. Annis School of Engineering \| UIndyuindy.edu/cas/engineering/	5
	College of Education and Behavioral Sciences \| UIndyuindy.edu/cebs/	5
	College of Health Sciences \| UIndyuindy.edu/health-sciences/	4
	The School of Business \| UIndyuindy.edu/business/	2
	School of Social Work and Counseling \| UIndyuindy.edu/cebs/pllsswc/	2
	The School of Education \| UIndyuindy.edu/cebs/education/	2
	Women's Executive Leadership Institute \| UIndyuindy.edu/womens-leadership/	2
	Krannert School of Physical Therapy Home \| UIndyuindy.edu/health-sciences/pt/	2
	Page Not Found \| UIndyuindy.edu/error	2
	University of Indianapolisuindy.edu/	2

Fix duplicate IDs

University of Indianapolis

Where this issue has occurred