Crawler proxy IP configuration tutorial | Python crawler automatically switch IP guide

The Python Crawler IP Dilemma in Real Scenarios

When collecting public data in bulk, many developers have encountered such scenarios: everything is normal in the first 30 minutes of script operation, and then suddenly there is a 403 error; obviously set up random intervals, the target website still pops up the CAPTCHA frequently; when it is necessary to collect the contents of different regions, the geographic location of the local IP becomes an obstacle. These are exactly the core pain points that proxy IP technology has to solve.

Three Steps to Configure the Base Agent

Take the requests library as an example, add the following configuration to the existing code:

proxies = {
    "http": "http://用户名:密码@gateway.ipipgo.net:端口",
    "https": "http://用户名:密码@gateway.ipipgo.net:端口"
}
response = requests.get(url, proxies=proxies)

Note to replace the authentication information provided by ipipgo, it is recommended to store the proxy address in a separate configuration file. If you are using Selenium, theChromeOptionsAdd an agent:

options.add_argument("--proxy-server=http://用户名:密码@dynamic-entry-domain:port")

Advanced solutions for smart switching

Two automatic switching modes are recommended for long-running crawlers:

Specific implementation code example (with ipipgo API):

def get_new_ip().
    api_url = "https://api.ipipgo.com/动态IP池"
    return requests.get(api_url).json()['proxy']

 Auto-retry on request failure
try.
    response = requests.get(url, proxies=current_proxy)
except ProxyError: current_proxy = get_new_proxy
    current_proxy = get_new_ip()
    response = requests.get(url, proxies=current_proxy)

Why choose ipipgo residential agency

In a real-world comparison, it was found that the request throughput rate of ordinary data center proxies is about 671 TP3T, while the residential IP pool provided by ipipgo can reach 921 TP3T+. Its core advantages include:

• Real Home Broadband IP: 90 million + residential nodes accessed through home routers
• Protocol Level Compatibility: Perfect support for SOCKS5/HTTP/HTTPS full stacks
• Precise geolocation: Each IP carries a real ASN number and address information

Frequently Asked Questions (FAQs)

Q: How can I verify if the agent is in effect?
A: Visit https://ip.ipipgo.com/ in the code to see if the returned IP information has changed

Q: How to choose between Dynamic IP and Static IP?
A: Dynamic IP pool for high-frequency collection (e.g., commodity price monitoring), and static IP for session maintenance (e.g., login state operation).

Q: What do I do if I encounter CAPTCHA validation?
A: Combining ipipgo's IP rotation with Selenium's automated operation, it is recommended to set up automatic IP replacement for every 20 requests completed

Detailed optimization to circumvent backcrawling

In addition to changing IPs, you need to be careful:

1. Setting up a random User-Agent list to synchronize with the IP replacement cadence
2. Disabling JavaScript Reduces Feature Recognition in Non-Browser Automation Scenarios
3. Avoid using proxy IPs to access the website login interface directly

By combining these strategies with ipipgo's proxy service, a stable data collection system can be constructed. Especially in scenarios where real user behavior needs to be simulated, the covert advantage of residential proxy IP will be more obvious.