# Platform (OS)

The platform parameter lets you select the **operating system (OS) of the residential proxy** for the Transmission Control Protocol (TCP) connection.

This can significantly **improve your scraping success rates** by ensuring your proxy and machine fingerprints match. For example, if your HTTP request mimics Google Chrome desktop but you are using an Android residential proxy, the target website may identify a fingerprint mismatch and block such traffic.

{% hint style="success" %}
To **enable this feature**, contact your Account Manager (details available in the [Dashboard](https://dashboard.oxylabs.io/)). You may need to complete a quick [KYC](https://oxylabs.io/kyc-and-safety) procedure.
{% endhint %}

### Usage

Add the `platform` parameter to your username string to specify the platform. It works alongside other parameters. Available values are:

* `windows`
* `macos`
* `linux`
* `android`
* `ios`

For instance, to get a proxy IP that comes from a Windows platform, your proxy username string should be: `customer-USERNAME-platform-windows`. Here's a complete cURL example:

```bash
curl -x pr.oxylabs.io:7777 -U "customer-USERNAME-platform-windows:PASSWORD" https://ip.oxylabs.io/location
```

{% hint style="warning" %}
Residential Proxies are dynamic, so we cannot guarantee availability when combining the platform with specific locations (e.g., city, ZIP).
{% endhint %}


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://developers.oxylabs.io/proxies/residential-proxies/advanced-filters/platform-os.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.