Shop | Springer Nature

For librarians | For Librarians | Springer Nature

Open science | Springer Nature

Products | Springer Nature

Springer Nature | Springer Nature

Contact us | Springer Nature | Contact us | Springer Nature

Booksellers | Springer Nature | Booksellers | Springer Nature

Springer Nature | Springer Nature Japan

Powering R&D with 150 Years of Expertise | Springer Nature

Springer Nature

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

Title / URL	Issues
Shop \| Springer Naturewww.springernature.com/gp/shop	38
For librarians \| For Librarians \| Springer Naturewww.springernature.com/gp/librarians	21
Open science \| Springer Naturewww.springernature.com/gp/open-science	20
Products \| Springer Naturewww.springernature.com/gp/products	20
Springer Nature \| Springer Naturewww.springernature.com/cn	19
Contact us \| Springer Nature \| Contact us \| Springer Naturewww.springernature.com/gp/contact	18
Booksellers \| Springer Nature \| Booksellers \| Springer Naturewww.springernature.com/gp/booksellers	17
Springer Nature \| Springer Nature Japanwww.springernature.com/jp	16
Powering R&D with 150 Years of Expertise \| Springer Naturewww.springernature.com/gp/rd	16
Springer Naturewww.springernature.com/de	16

Fix duplicate IDs

Springer Nature

Where this issue has occurred