Cohorts Academics | Calvin University

Alumni Association | Calvin University

Life at Calvin | Calvin University

Parents & Families | Calvin University

Research | Calvin University

Faculty & Staff | Calvin University

Financial Aid | Calvin University

Athletics | Calvin University

Honors at Calvin Academics | Calvin University

Centers & Institutes Research | Calvin 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

January 2025

December 2024

Calvin University

Title / URL	Issues
Cohorts Academics \| Calvin Universitycalvin.edu/academics/cohorts	16
Alumni Association \| Calvin Universitycalvin.edu/alumni-association	10
Life at Calvin \| Calvin Universitycalvin.edu/life-calvin	10
Parents & Families \| Calvin Universitycalvin.edu/parents-families	10
Research \| Calvin Universitycalvin.edu/research	10
Faculty & Staff \| Calvin Universitycalvin.edu/faculty-staff	10
Financial Aid \| Calvin Universitycalvin.edu/financial-aid	10
Athletics \| Calvin Universitycalvin.edu/athletics	10
Honors at Calvin Academics \| Calvin Universitycalvin.edu/academics/honors	10
Centers & Institutes Research \| Calvin Universitycalvin.edu/centers-institutes	10

Fix duplicate IDs

Calvin University

Where this issue has occurred