Reverse Proxy Failover

The most convenient way is to use online proxy checkers, i.e. services that test all connection capabilities, including supported protocols. For example, Hidemy.name or Securitylab. As for applications, you can recommend SocksChain or Open Proxy Checker.

Web scraping to collect email addresses from web pages raises ethical and legal considerations. It's important to respect privacy and adhere to the terms of service of the websites you are scraping. Additionally, harvesting email addresses for unsolicited communication may violate anti-spam regulations.

If you have a legitimate use case, here's a basic example in Python using the requests library and regular expressions to extract email addresses. Note that this is a simplistic example and may not cover all email address variations:

import re
import requests

def extract_emails_from_text(text):
    email_pattern = r'\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b'
    return re.findall(email_pattern, text)

def scrape_emails_from_url(url):
    response = requests.get(url)
    if response.status_code == 200:
        page_content = response.text
        emails = extract_emails_from_text(page_content)
        return emails
    else:
        print(f"Failed to fetch content from {url}. Status code: {response.status_code}")
        return []

# Example usage
url_to_scrape = 'https://example.com'
emails_found = scrape_emails_from_url(url_to_scrape)

if emails_found:
    print("Email addresses found:")
    for email in emails_found:
        print(email)
else:
    print("No email addresses found.")

Keep in mind the following:

1. Ethics and Legality:

   • Ensure that your scraping activities are ethical and comply with the laws and terms of service of the websites you are scraping.

2. Robots.txt:

   • Check the website's robots.txt file to understand if scraping is allowed or restricted.

3. Consent:

   • Respect user privacy and obtain consent if necessary.

4. Anti-Spam Regulations:

   • Be aware of and comply with anti-spam regulations in your region.

5. Variability of Email Formats:

   • Email address formats can vary, and the regular expression provided is a basic example. You may need to adjust it based on the actual formats you encounter.

6. Use of APIs:

   • If available, consider using official APIs provided by websites to access data rather than scraping.

To put a proxy on an emulator, you need to configure the proxy settings within the emulator itself. The process may vary depending on the emulator you are using. Here, I will provide instructions for the popular Android emulators:

BlueStacks:
- Open BlueStacks and sign in with your Google account.
- Click on the "three dots" (⠇) in the top right corner of the BlueStacks window.
- Select "Settings" from the dropdown menu.
- In the Settings window, go to the "Networking" section.
- You will find the "Proxy settings" or "Network settings" option. Click on it.
- Enter the proxy server address, port, and select the proxy type (HTTP or HTTPS).
- Click "Save" to apply the changes.

Nox Player:
- Open Nox Player and sign in with your Google account.
- Click on the "gear icon" (⚙️) in the top right corner of the Nox Player window.
- Select "Settings" from the dropdown menu.
- In the Settings window, go to the "Networking" section.
- You will find the "Proxy settings" or "Network settings" option. Click on it.
- Enter the proxy server address, port, and select the proxy type (HTTP or HTTPS).
- Click "Save" to apply the changes.

Please note that the steps and options may vary depending on the specific version of the emulator you are using.

You need to go to "Settings", under "Sharing" select "VPN". And there you can either enter the connection parameters manually (address, port number, username and password), or choose a program that automatically connects the user to the proxy (free applications of this type can be found in Google Play).

It is necessary to go to "Settings", select "WiFi", then specify the network for which you want to disable the proxy. After that, tap on "Proxy settings" and check "Off". This option is valid for iOS version 10 and higher.