**Selenium** is a widely-used browser automation framework that supports multiple languages and browsers. It's ideal for testing, scraping, and automating interactions with websites that rely on JavaScript or require user simulation, such as login forms and pagination.
## **Prerequisites** - Active **Squid Proxies** account with whitelisted IP - Proxy list: - Datacenter: `http://123.45.67.89:8000` - Residential: `http://p102.squidproxies.com:8907` - Selenium installed: ```bash # Python pip install selenium # Java (Maven) org.seleniumhq.selenium selenium-java 4.9.0 # C# (.NET) Install-Package Selenium.WebDriver -Version 4.9.0 ```
## **Basic proxy setup in Python** **Chrome:** ```python from selenium import webdriver from selenium.webdriver.chrome.options import Options options = Options() options.add_argument('--proxy-server=http://123.45.67.89:8000') driver = webdriver.Chrome(options=options) driver.get("https://ipinfo.io") ``` **Firefox:** ```python from selenium import webdriver from selenium.webdriver.firefox.options import Options profile = webdriver.FirefoxProfile() profile.set_preference("network.proxy.type", 1) profile.set_preference("network.proxy.http", "123.45.67.89") profile.set_preference("network.proxy.http_port", 8000) profile.set_preference("network.proxy.ssl", "123.45.67.89") profile.set_preference("network.proxy.ssl_port", 8000) options = Options() driver = webdriver.Firefox(firefox_profile=profile, options=options) driver.get("https://ipinfo.io") ```
## **Basic proxy setup in Java** ```java import org.openqa.selenium.WebDriver; import org.openqa.selenium.chrome.ChromeDriver; import org.openqa.selenium.chrome.ChromeOptions; ChromeOptions options = new ChromeOptions(); options.addArguments("--proxy-server=http://123.45.67.89:8000"); WebDriver driver = new ChromeDriver(options); driver.get("https://ipinfo.io"); ```
## **Basic proxy setup in C#** ```csharp using OpenQA.Selenium; using OpenQA.Selenium.Chrome; var options = new ChromeOptions(); options.AddArgument("--proxy-server=http://123.45.67.89:8000"); IWebDriver driver = new ChromeDriver(options); driver.Navigate().GoToUrl("https://ipinfo.io"); ```
## **Using residential proxies** Use exactly like datacenter proxies: ``` http://p102.squidproxies.com:8907 ```
## **Proxy authentication (if needed)** **Python + Selenium Wire:** ```bash pip install selenium-wire ``` ```python from seleniumwire import webdriver options = { 'proxy': { 'http': 'http://user:pass@proxy-ip:port', 'https': 'http://user:pass@proxy-ip:port', 'no_proxy': 'localhost,127.0.0.1' } } driver = webdriver.Chrome(seleniumwire_options=options) driver.get("https://ipinfo.io") ```
## **Rotating proxies** ```python import random proxies = [ 'http://123.45.67.89:8000', 'http://123.45.67.90:8000' ] selected = random.choice(proxies) options.add_argument(f'--proxy-server={selected}') ```
## **Sticky IP sessions** Use session token on residential proxies: ``` http://p102.squidproxies.com:8907?session=abc123 ```
## **Anti-fingerprinting headers** ```bash pip install undetected-chromedriver ``` ```python import undetected_chromedriver as uc options = uc.ChromeOptions() options.add_argument('--proxy-server=http://123.45.67.89:8000') driver = uc.Chrome(options=options) ```
## **CAPTCHA handling with 2Captcha** - Detect CAPTCHA - Extract sitekey - Submit to 2Captcha - Inject token Refer to the [CAPTCHA Handling with 2Captcha](https://www.squidproxies.com/developer-docs/dev-advanced-guides/captcha-handling-with-2captcha) guide for full implementation.
## **Testing proxy connection** ```python driver.get("https://ipinfo.io") ``` **Or via terminal:** ```bash curl -x http://123.45.67.89:8000 https://httpbin.org/ip ```
## **Best practices for Selenium proxy integration** | Strategy | Description | |----------------------|--------------------------------------| | Use IP whitelisting | Preferred for SquidProxies | | Rotate proxies | Random or per-session rotation | | Vary headers | Simulate real browser traffic | | Handle CAPTCHA | Use 2Captcha or similar tools | | Avoid headless-only | Use full browser + stealth if needed | | Monitor status codes | Rotate on 403/429 or timeouts |
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**More Guides:** - [Sticky IP Sessions](https://www.squidproxies.com/developer-docs/dev-advanced-guides/sticky-ip-sessions) - [Java Integration](https://www.squidproxies.com/developer-docs/dev-getting-setup/java)