How can I deal with dynamic IP addresses when scraping Zoominfo?

Dealing with dynamic IP addresses when scraping a site like ZoomInfo can be challenging due to its sophisticated anti-scraping measures. ZoomInfo, like many other companies, actively tries to detect and block scraping activities. Here are several strategies you can use to handle dynamic IP addresses and minimize the risk of being blocked while scraping:

  1. Use Proxy Servers: By using proxy servers, you can rotate your IP address to avoid being blocked by the target site's IP rate limits. Here's how you can set up proxy rotation in Python using the requests library:
   import requests
   from itertools import cycle

   proxies = ["http://ip1:port", "http://ip2:port", "http://ip3:port"]  # Replace with your proxy IPs and ports
   proxy_pool = cycle(proxies)

   url = ''

   for i in range(len(proxies)):
       # Get a proxy from the pool
       proxy = next(proxy_pool)
       print(f"Request #{i+1}: Using proxy {proxy}")
           response = requests.get(url, proxies={"http": proxy, "https": proxy})
       except requests.exceptions.ProxyError as e:
           print(f"Proxy {proxy} failed. Trying next.")
  1. Use Residential Proxies: Residential proxies provide IP addresses that are assigned to real residential addresses, which can make your scraping activities seem more legitimate than those coming from data center proxies. Residential proxies are less likely to be blacklisted.

  2. Rotate User Agents: Alongside rotating IP addresses, you should also rotate user agents to further disguise your scraping bot. The user agent string tells the server about the type of device and browser you're using. By changing it, you can prevent the servers from detecting a pattern in your requests.

  3. Implement Delays and Randomized Intervals: To mimic human behavior, you can implement random delays between your requests. This can prevent the server from flagging your traffic as bot-like due to the unnaturally fast sequence of requests.

  4. Use CAPTCHA Solving Services: If ZoomInfo presents CAPTCHAs as a challenge to your scraper, you may need to use a CAPTCHA solving service. Some services provide APIs that allow you to automate the process of solving CAPTCHAs.

  5. Headless Browsers and Browser Automation Tools: Tools like Selenium or Puppeteer can be used to control a web browser and simulate real user interactions. Here's a basic example of how to use Puppeteer in JavaScript to open a page:

   const puppeteer = require('puppeteer');

   (async () => {
     const browser = await puppeteer.launch();
     const page = await browser.newPage();

     await page.goto('', { waitUntil: 'networkidle2' });

     // Perform actions on the page as needed

     await browser.close();
  1. Be Ethical and Respect robots.txt: Always check the robots.txt file of the target website (e.g., to see if scraping is disallowed. Respect their rules and do not scrape content that is explicitly disallowed.

  2. Stay Under Rate Limits: Try to understand the rate limits of the website and keep your request rate below that threshold. This can sometimes be determined through trial and error or by carefully reading through API documentation if available.

  3. Use a Web Scraping Service: There are various web scraping services that handle proxy rotation, CAPTCHA solving, and browser automation for you. These services often come at a cost but can be a reliable solution if you need to scrape data at scale.

Please keep in mind that web scraping can be a legal gray area and scraping protected or private information without permission may violate the terms of service of the website and potentially the law. Always ensure that your scraping activities comply with all relevant laws and regulations, as well as the terms of service of the website you're scraping.

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