International students

Stories

Events at UTS

Facts, figures and rankings | University of Technology Sydney

Explore our research

Research centres and institutes

Faculties and Schools | University of Technology Sydney

Newsroom

Facilities

Courses

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

December 2025

November 2025

University of Technology Sydney (UTS)

Title / URL	Issues
International studentswww.uts.edu.au/for-students/international	22
Storieswww.uts.edu.au/stories	14
Events at UTSwww.uts.edu.au/events	10
Facts, figures and rankings \| University of Technology Sydneywww.uts.edu.au/about/why-uts	10
Explore our researchwww.uts.edu.au/research/explore	10
Research centres and instituteswww.uts.edu.au/research/centres	10
Faculties and Schools \| University of Technology Sydneywww.uts.edu.au/about/faculties	10
Newsroomwww.uts.edu.au/news	10
Facilitieswww.uts.edu.au/about/locations-facilities	10
Courseswww.uts.edu.au/courses	10

Fix duplicate IDs

University of Technology Sydney (UTS)

Where this issue has occurred