Python Web Crawler Tutorial: Bypassing Anti-Crawl Restrictions with Proxy IPs

Why is this crawler blocked again? Try the proxy IP renewal method

Two days ago, I helped a friend to catch the data of an e-commerce company, and just ran for half an hour and the IP was blocked. I was so angry that I poured three cups of coffee, suddenly remembered that last year I used the proxy IP service, and hurriedly turned out the bottom of the ipipgo account. As a result, guess what? Continuously run for three days and three nights have not been blocked, this thing is more refreshing than red bull!

Website anti-climbing routines revealed

Webmasters aren't vegetarians, and they're crawler-proofed mainly for these tricks:

1. IP access frequency monitoring（Like a neighborhood security guard writing down license plates.)
2. Request header fingerprinting（It's like recognizing someone by their footsteps.)
3. Behavioral trajectory analysis(Similar to watching surveillance replay for suspicious movements)

Proxy IP works in seconds

Imagine you hired an errand boy to help you go to the grocery store:

Your computer -> Proxy server -> Target website
(Honored homeowner) (Errand boy) (Supermarket counter)

The supermarkets simply don't recognize the same person going on a shopping spree when they request a different little guy each time!

Hands-on with ipipgo Proxy

beforehandipipgo official websiteGet a package, their IP pool is updated as fast as a cell phone system upgrade. After getting the API interface, let's play with Python:

import requests
from random import choice

 API link copied from ipipgo backend
ip_api = "https://api.ipipgo.com/your_token"

def get_proxies():
    ip_list = requests.get(ip_api).json()
    return {'http': f'http://{choice(ip_list)}'}

try.
    response = requests.get('Target URL',
                          proxies=get_proxies(),
                          timeout=10)
    print(response.text)
except Exception as e.
    print(f "This time it flipped: {e}")

Life-saving tips from a seasoned veteran

Highlight it three times:Don't use free proxies! Those IPs have long been blacklisted by major websites, no different from using your own IP. ipipgo's high stash of IPs comes with a stealthy effect, which is more reliable than some celebrities' PR teams.

Frequently Asked Questions First Aid Kit

Q: How many times will the proxy IP be invalidated?
A: Normal phenomenon! It is recommended to set up an automatic replacement policy. ipipgo's API supports extracting the latest IPs on demand!

Q: What should I do if the code returns a 407 error?
A: Check if the proxy format is correct, remember to add the account password before the IP, like this: http://用户名:密码@ip:port

Q: How do I know if a proxy is truly anonymous?
A: Visit http://httpbin.org/ip看返回的IP是否暴露真实地址. ipipgo's proxies come with anonymous detection reports, which is a big relief.

The Ultimate Survival Guide

Remember this universal formula:
Quality Proxy Pool + Random Request Interval + Anthropomorphic Operation = Long Term Survival
Recently found ipipgo home new dynamic port function, can automatically switch the export IP, is simply customized for the crawler bulletproof vest.

Lastly, I would like to say that when you encounter a particularly difficult website, you can try to use Selenium with a proxy IP. Although the speed is slower, but the simulation effect is comparable to the real operation, with ipipgo's residential proxy, the success rate can be increased by 70% to 80%!