> For the complete documentation index, see [llms.txt](https://docs.goproxies.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.goproxies.com/proxies/rotating-residential-proxies/proxy-parameters/session-stickiness.md).

# Session Stickiness

### Establishing a session

The `sessionid` proxy header maintains the same IP address for a session up to 10 minutes, as long as the IP remains in the pool. If not, a new IP is assigned. To reuse an IP, use the same `sessionid` header with a unique identifier of 4 to 10 digits, e.g., `sessionid-42831931` . 

For session duration adjustments, contact us at <support@goproxies.com>.

### Credentials list of examples for different sessions

Examples below contain a list of credentials that establish a new unique session.

`customer-USERNAME-sessionid-7129391:PASSWORD`\
`customer-USERNAME-sessionid-8128311:PASSWORD`\
`customer-USERNAME-sessionid-1812819:PASSWORD`\
`customer-USERNAME-sessionid-289301:PASSWORD`\
`customer-USERNAME-sessionid-3916211:PASSWORD`<br>

### Understanding sessionid header

When using a session ID, such as `customer-USERNAME-sessionid-7129391:PASSWORD`, the proxy assigns you an IP address (e.g., 1.1.1.1), valid for 10 minutes. Any requests using the same `sessionid` will return the same IP. If there's no activity with the session ID for 10 minutes, you may be assigned a new IP (e.g., 1.1.1.2), or if the old IP is unavailable, it will be replaced as well.

### Request example

{% tabs %}
{% tab title="cURL" %}
{% code overflow="wrap" %}

```bash
curl --proxytunnel --proxy "https://customer-USERNAME-sessionid-7182391:PASSWORD@proxy.goproxies.com:1080" https://ip.goproxies.com
```

{% endcode %}
{% endtab %}

{% tab title="JavaScript" %}

```javascript
const axios = require('axios');
const { HttpsProxyAgent } = require('https-proxy-agent');

const username = 'customer-USERNAME-sessionid-7182391';
const password = 'PASSWORD';
const proxyAuth = encodeURIComponent(username) + ':' + encodeURIComponent(password);
const proxyUrl = `http://${proxyAuth}@proxy.goproxies.com:1080`;
const agent = new HttpsProxyAgent(proxyUrl);

(async () => {
  try {
    const res = await axios.get('https://ip.goproxies.com', { httpsAgent: agent, timeout: 10000 });
    console.log(res.status, res.data);
  } catch (err) {
    console.error('request error:', err.message);
  }
})();
```

{% endtab %}

{% tab title="Python" %}

```python
import requests
from urllib.parse import quote

username = "customer-USERNAME-sessionid-7182391"
password = "PASSWORD"
proxy = f"http://{quote(username)}:{quote(password)}@proxy.goproxies.com:1080"

proxies = {
    "http": proxy,
    "https": proxy,
}

resp = requests.get("https://ip.goproxies.com", proxies=proxies, timeout=10)
print(resp.status_code)
print(resp.text)
```

{% endtab %}

{% tab title="Go" %}

```go
package main

import (
	"fmt"
	"io"
	"net/http"
	"net/url"
	"time"
)

func main() {
	proxyURL, _ := url.Parse("http://customer-USERNAME-sessionid-7182391:PASSWORD@proxy.goproxies.com:1080")
	transport := &http.Transport{
		Proxy: http.ProxyURL(proxyURL),
		TLSHandshakeTimeout: 10 * time.Second,
	}
	client := &http.Client{Transport: transport, Timeout: 15 * time.Second}

	resp, err := client.Get("https://ip.goproxies.com")
	if err != nil {
		fmt.Println("request error:", err)
		return
	}
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println("status:", resp.Status)
	fmt.Println(string(body))
}
```

{% endtab %}

{% tab title="Java" %}

```java
import org.apache.http.HttpHost;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;

public class ProxySessionExample {
  public static void main(String[] args) throws Exception {
    String proxyHost = "proxy.goproxies.com";
    int proxyPort = 1080;
    String user = "customer-USERNAME-sessionid-7182391";
    String pass = "PASSWORD";

    CredentialsProvider credsProvider = new BasicCredentialsProvider();
    credsProvider.setCredentials(new AuthScope(proxyHost, proxyPort),
        new UsernamePasswordCredentials(user, pass));

    HttpHost proxy = new HttpHost(proxyHost, proxyPort);
    RequestConfig config = RequestConfig.custom().setProxy(proxy).build();

    try (CloseableHttpClient httpclient = HttpClients.custom()
             .setDefaultCredentialsProvider(credsProvider)
             .build()) {

      HttpGet httpget = new HttpGet("https://ip.goproxies.com");
      httpget.setConfig(config);

      try (CloseableHttpResponse response = httpclient.execute(httpget)) {
        System.out.println(response.getStatusLine());
        System.out.println(new String(response.getEntity().getContent().readAllBytes()));
      }
    }
  }
}
```

{% endtab %}

{% tab title="Ruby" %}

```ruby
require 'net/http'
require 'uri'

username = 'customer-USERNAME-sessionid-7182391'
password = 'PASSWORD'

uri = URI('https://ip.goproxies.com')
proxy_addr = 'proxy.goproxies.com'
proxy_port = 1080

Net::HTTP::Proxy(proxy_addr, proxy_port, username, password).start(uri.host, uri.port, use_ssl: true) do |http|
  req = Net::HTTP::Get.new(uri)
  res = http.request(req)
  puts res.code
  puts res.body
end
```

{% endtab %}

{% tab title="PHP" %}

```php
<?php
$ch = curl_init('https://ip.goproxies.com');

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_PROXY, 'proxy.goproxies.com:1080');
curl_setopt($ch, CURLOPT_PROXYUSERPWD, 'customer-USERNAME-sessionid-7182391:PASSWORD');
curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, true);

$response = curl_exec($ch);
if ($response === false) {
    echo 'cURL error: ' . curl_error($ch) . PHP_EOL;
} else {
    echo 'Response: ' . $response . PHP_EOL;
}
curl_close($ch);
```

{% endtab %}
{% endtabs %}


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

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

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://docs.goproxies.com/proxies/rotating-residential-proxies/proxy-parameters/session-stickiness.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

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.