Royal Air Force | Home

Posting | Royal Air Force

First time visit: View without clicking anything

Falcons | Royal Air Force

Housing | Royal Air Force

How we are organised | Royal Air Force

Team Tempest | Royal Air Force

Inside AIR podcast | Royal Air Force

Display teams | Royal Air Force

UK Space Command | Royal Air Force

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

June 2025

May 2025

Royal Air Force

Title / URL	Issues
Royal Air Force \| Homewww.raf.mod.uk/	4
Posting \| Royal Air Forcewww.raf.mod.uk/serving-families/posting/	4
First time visit: View without clicking anythingwww.raf.mod.uk/	4
Falcons \| Royal Air Forcewww.raf.mod.uk/display-teams/falcons/	2
Housing \| Royal Air Forcewww.raf.mod.uk/serving-families/housing/	2
How we are organised \| Royal Air Forcewww.raf.mod.uk/our-organisation/overview/	2
Team Tempest \| Royal Air Forcewww.raf.mod.uk/what-we-do/team-tempest/	2
Inside AIR podcast \| Royal Air Forcewww.raf.mod.uk/what-we-do/insideair/	2
Display teams \| Royal Air Forcewww.raf.mod.uk/display-teams/	2
UK Space Command \| Royal Air Forcewww.raf.mod.uk/what-we-do/uk-space-command/	2

Fix duplicate IDs

Royal Air Force

Where this issue has occurred