> For the complete documentation index, see [llms.txt](https://docs.roadrunner.dev/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.roadrunner.dev/docs/http/gzip.md).

# gzip

The gzip middleware can compress HTTP responses for clients that send `Accept-Encoding: gzip`. It does not decompress incoming request bodies.

## Documentation

* MDN: [Accept-Encoding](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Accept-Encoding)

## Configuration

{% code title=".rr.yaml" %}

```yaml
version: "3"

http:
  address: 127.0.0.1:15389
  middleware: [ gzip ]
  pool:
    num_workers: 10
    allocate_timeout: 60s
    destroy_timeout: 60s
```

{% endcode %}

Put `gzip` before `static` or `sendfile` to apply compression to their responses. See [middleware order](/docs/http/http.md#middleware-order).

This middleware provides gzip compression only. Use the separate [Zstd middleware](/docs/http/zstd.md) for clients that accept `zstd`.

The gzip middleware supports OpenTelemetry header propagation.