Explicit Proxy

It's a router that redirects all traffic through a VPN server. Many router models support this function, you only need to specify the data for connecting to a particular VPN (that is, enter the parameters that will provide a VPN service). And some manufacturers provide such routers, in which all settings are already prescribed (the developers themselves provide a VPN-service or are representatives of such).

Proxy "tunneling" should be understood as the isolation of traffic from the user. It allows you to form a fully protected channel for data exchange, which will be isolated from all other traffic.

Popup scraping typically involves interacting with web pages that have dynamic content, including popups or modals. To scrape data from popups, you may need to use a headless browser automation library. One popular choice is Selenium, which provides a WebDriver API for interacting with browsers.

Here's an example using Python and Selenium to scrape data from a webpage with a popup

Install Selenium:

pip install selenium

• Download WebDriver:

  • Download the WebDriver for the browser you want to use. In this example, I'll use ChromeDriver. Download it from ChromeDriver Downloads and place the executable in your project directory or in a directory listed in your system's PATH.

• Write the Scraping Code:

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

def scrape_with_popup(url):
    # Set up the WebDriver (make sure the WebDriver executable is in the same directory or in your PATH)
    driver = webdriver.Chrome()

    try:
        # Open the webpage
        driver.get(url)

        # Locate and click the button/link that triggers the popup
        popup_trigger = driver.find_element(By.ID, 'popup-trigger')
        popup_trigger.click()

        # Wait for the popup to appear (adjust the timeout as needed)
        WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.ID, 'popup-content')))

        # Extract data from the popup
        popup_content = driver.find_element(By.ID, 'popup-content').text
        print("Popup Content:", popup_content)

    finally:
        # Close the browser window
        driver.quit()

# Replace 'https://example.com' with the actual URL of the webpage
scrape_with_popup('https://example.com')

3. • Replace 'https://example.com' with the actual URL of the webpage you want to scrape.
   • Replace 'popup-trigger' and 'popup-content' with the actual IDs or other locators of the elements triggering the popup and the popup content.

4. Run the Code:

   • Execute the Python script, and it will open a browser, interact with the webpage, and print the content of the popup.

This example assumes that the webpage you are working with uses a trigger element (button/link) to open the popup.

Load testing with Selenium involves simulating a large number of concurrent users to assess how a web application performs under different levels of load. While Selenium itself is primarily designed for functional testing and browser automation, you can use additional tools and frameworks in combination with Selenium to perform load testing. Here are some approaches:

1. Using Selenium Grid with Multiple Nodes:

   • Selenium Grid allows you to distribute test execution across multiple machines, called nodes. You can set up a Selenium Grid with multiple nodes, each running different browser instances.
   • Tools like JMeter or Gatling can be used to simulate concurrent user load and distribute the load across the Selenium Grid.
   • The Selenium Grid setup allows you to scale your load tests by adding more nodes.

2. Combining Selenium with JMeter:

   • JMeter is a popular open-source load testing tool. While JMeter is not designed for browser automation, you can use it to simulate user interactions at the HTTP protocol level.
   • Record user scenarios with JMeter's HTTP(S) Test Script Recorder while performing actions in the browser. Convert recorded scenarios to JMeter test plans.
   • Run the JMeter test plans to simulate concurrent users, and monitor the performance of your web application.

3. Using Headless Browsers:

   • Headless browsers (browsers without a graphical user interface) can be used to simulate user interactions without the overhead of rendering pages.
   • Tools like Selenium with headless Chrome or headless Firefox can be used for load testing. Run multiple instances of headless browsers simultaneously to simulate concurrent users.

4. Combining Selenium with Gatling:

   • Gatling is another popular open-source load testing tool that is scriptable in Scala.
   • You can write Gatling scripts to simulate user scenarios using the Selenium DSL (Domain Specific Language) provided by Gatling.
   • Gatling can be used to generate a high load on your web application and measure performance metrics.

5. Using Cloud-Based Load Testing Services:

   • Cloud-based load testing services like BlazeMeter, Flood Element, or BrowserStack can be used for Selenium-based load testing.
   • These services provide scalable infrastructure for running Selenium tests in parallel to simulate a large number of concurrent users.

6. Custom Solutions with WebDriver:

   • You can write custom scripts using Selenium WebDriver to simulate user interactions and run them concurrently using a scripting or programming language (e.g., Python, Java, etc.).
   • Implement logic to run multiple threads or processes, each simulating a user. Be cautious about the limitations and synchronization issues that may arise in a multithreaded environment.

When performing load testing with Selenium, consider the following:

• Monitor the performance of your web application to identify bottlenecks.
• Be mindful of the limitations of the testing environment, especially when running tests on local machines.
• Ensure that your load testing approach aligns with your specific testing goals and requirements.

It depends on which browser you are using. In Opera, Chrome, Edge a proxy is configured at the level of the operating system itself. In Firefox in the settings there is a special item (in the "Privacy" section).