# CDN [#cdn]

Fontsource has partnered with [jsDelivr](https://www.jsdelivr.com/) for a custom proxy for all of its font files, allowing for niche use cases where a stable font file link is required. All files are versioned according to [Semver](https://semver.org/), and using a specific version tag will give you longer lived caches.

> **Note:** We recommend self-hosting your fonts if possible, but we understand there are suitable use cases for a CDN.

## Usage [#usage]

To leverage the Fontsource CDN for your project, you can use the import generator provided on the install page of each font. For example, to use [Roboto Flex](/fonts/roboto-flex/cdn), you can access its import generator to generate the relevant URLs and CSS necessary for your projec

## URL Formats [#url-formats]

The Fontsource CDN provides two primary URL formats for accessing font files:

### Static URLs [#static-urls]

Static font URLs follow this pattern:

* `https://cdn.jsdelivr.net/fontsource/fonts/{id}@{version}/{subset}-{weight}-{style}.{extension}`

### Variable Fonts URLs [#variable-fonts-urls]

Variable fonts URLs have the format:

* `https://cdn.jsdelivr.net/fontsource/fonts/{id}:vf@{version}/{subset}-{axes}-{style}.woff2`

## Example URLs [#example-urls]

Here are some example URLs that demonstrate how to use Fontsource’s CDN with different fonts and configurations:

* Variable URL for the latest version of Roboto Flex with Latin subset, wght axis, and normal style: `https://cdn.jsdelivr.net/fontsource/fonts/roboto-flex:vf@latest/latin-wght-normal.woff2`

* Variable URL for Roboto Flex version 5.0.8 with Cyrillic Extended subset, normal weight, and normal style: `https://cdn.jsdelivr.net/fontsource/fonts/roboto-flex:vf@5.0.8/cyrillic-ext-wdth-normal.woff2`

* Static URL for Inter version 5.0 with Vietnamese subset, 500 weight, and normal style: `https://cdn.jsdelivr.net/fontsource/fonts/inter@5.0/vietnamese-500-normal.woff2`

* Static URL for Inter version 5 with Greek Extended subset, 400 weight, and italic style: `https://cdn.jsdelivr.net/fontsource/fonts/inter@5/greek-ext-400-italic.woff2`