Research - Iowa State University

Apply - Iowa State University

Virtual Office - Iowa State University

Workday Interest - Iowa State University

Online Degrees and Programs - Iowa State University

Pre-Law Preparation - Iowa State University

Industry Partners - Iowa State University

Admissions - Iowa State University

Study Abroad - Iowa State University

Career Preparation - Iowa State University

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

August 2025

July 2025

Iowa State University

Title / URL	Issues
Research - Iowa State Universitywww.iastate.edu/learn-by-doing/research	2
Apply - Iowa State Universitywww.iastate.edu/admission-and-aid/apply	2
Virtual Office - Iowa State Universitywww.iastate.edu/virtual	2
Workday Interest - Iowa State Universitywww.iastate.edu/wdinterest	2
Online Degrees and Programs - Iowa State Universitywww.iastate.edu/academics/online-degrees-programs	2
Pre-Law Preparation - Iowa State Universitywww.iastate.edu/pre-law-preparation	2
Industry Partners - Iowa State Universitywww.iastate.edu/learn-by-doing/industry-partners	2
Admissions - Iowa State Universitywww.iastate.edu/admission-and-aid/admissions	2
Study Abroad - Iowa State Universitywww.iastate.edu/learn-by-doing/study-abroad	2
Career Preparation - Iowa State Universitywww.iastate.edu/learn-by-doing/career-preparation	2

Fix duplicate IDs

Iowa State University

Where this issue has occurred