# Enable Gzip from Origin

Enable Gzip From Origin allows the CDN to request text-based files from your origin using the `Accept-Encoding: gzip` header.

{% hint style="info" %}
This feature is available for Small, Large, and Dynamic CDN Resources.
{% endhint %}

If the origin supports gzip, the CDN stores the compressed version in cache; otherwise, it stores the uncompressed response.

{% hint style="info" %}
This feature does not control CDN → client compression.\
For client-side compression, see [How to Configure Gzip and Brotli](/products/performance-cdn/static-content-delivery/advanced-configuration/compression/how-to-configure-gzip-and-brotli.md).
{% endhint %}

Enable Gzip From Origin instructs the CDN to request text-based files from your origin using:

```
Accept-Encoding: gzip
```

When enabled:

• The CDN requests gzip-compressed content from the origin.\
• If the origin supports gzip, the CDN stores the compressed version in cache.\
• If the origin does not support gzip, the CDN stores the uncompressed response.

This improves performance and reduces bandwidth usage between the **Origin → CDN** path.

### How It Works

<figure><img src="/files/Gu9D1S8A0rYxcTJsz5ty" alt="" width="563"><figcaption><p>CDN requests gzip-compressed content from the origin when this feature is enabled.</p></figcaption></figure>

The CDN sends `Accept-Encoding: gzip` to the origin.\
If the origin supports gzip, compressed content is returned and stored in the cache.\
If the origin does not support gzip, the CDN caches the uncompressed response.

{% hint style="info" %}
Applies only to text-based MIME types (`.js`, `.css`, `.html`, `.txt`, `.xml`, `.json`, …).\
Does not apply to images. Use [Image Optimization](/products/performance-cdn/image-optimization-and-webp.md) instead.
{% endhint %}

### Enable Gzip from Origin

You can enable this feature via the [Medianova Control Panel](https://cloud.medianova.com)

{% stepper %}
{% step %}
**Open CDN Resources in the left-hand menu.**

This section lists all CDN Resources available in your account.
{% endstep %}

{% step %}
**Select a CDN Resource.**

{% hint style="info" %}
This feature is available for Small, Large, and Dynamic CDN Resources.
{% endhint %}
{% endstep %}

{% step %}
**Go to Advanced Configuration → Origin Settings.**

The tab displays all origin-related configuration options.
{% endstep %}

{% step %}
**Enable Gzip from Origin and click Submit.**

<figure><img src="/files/dhc6EyEqcytOFYxtxujy" alt=""><figcaption><p>Enable Gzip from Origin</p></figcaption></figure>

This action saves your configuration and activates gzip fetching for text files.
{% endstep %}
{% endstepper %}

Medianova CDN starts sending the `Accept-Encoding: gzip` header to your origin for eligible file types.

## **FAQ**

**Does this feature compress content for end-users?**\
No. It only optimizes the origin → CDN transfer.\
Client-side compression is handled separately by [Gzip Delivery and Brotli Delivery](/products/performance-cdn/static-content-delivery/advanced-configuration/compression/how-to-configure-gzip-and-brotli.md).

**What if my origin does not support gzip?**\
The CDN will fetch and cache the uncompressed version of the file.

**Does this apply to all file types?**\
No. The feature applies only to text-based MIME types.\
Images are not affected and require Image Optimization.


---

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