rsnext/docs/api-reference/next.config.js/basepath.md

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---
description: Learn more about setting a base path in Next.js
---
# Base Path
To deploy a Next.js application under a sub-path of a domain you can use the `basePath` option.
`basePath` allows you to set a path prefix for the application. For example `/docs` instead of `/` (the default).
For example, to set the base path to `/docs`, set the following configuration in `next.config.js`:
```js
module.exports = {
basePath: '/docs',
}
```
## Links
When linking to other pages using `next/link` and `next/router` the `basePath` will be automatically applied.
For example using `/about` will automatically become `/docs/about` when `basePath` is set to `/docs`.
```js
export default function HomePage() {
return (
<>
<Link href="/about">
<a>About Page</a>
</Link>
</>
)
}
```
Output html:
```html
<a href="/docs/about">About Page</a>
```
This makes sure that you don't have to change all links in your application when changing the `basePath` value.