Bypassing Anti-crawler Proxies: Breaking Through Cloudflare and Other Anti-crawler Systems

Getting blocked by Cloudflare while web scraping? Try these unconventional proxy IP tactics

Data scraping folks have probably encountered this: you're using it, and suddenly a CAPTCHA pops up, or they just block your IP. Especially when you run into a tough customer like Cloudflare, ordinary proxies just can't handle it. Today, let's talk about how to use proxy IPs to counter their moves, with a special recommendation for our ownipipgoservice, guaranteed to be easy to use.

1. Cloudflare's Three Weaknesses

This thing mainly relies on three tricks:IP Behavior AnalysisFrequency AnalysisBrowser FingerprintingBehavioral AnalysisVerification Challenges(that annoying CAPTCHA). The biggest problems with ordinary proxy IPs are:
1. Single IP used for too long gets flagged
2. Data center IP characteristics are too obvious
3. Request header information doesn't match

2. Practical Crack Techniques

First trick: Guerrilla Warfare
Recommendedipipgodynamic residential proxy, automatically changes IP every 5-10 minutes. Key code example:

import requests
from itertools import cycle

proxy_pool = cycle([
    'http://user:pass@gateway.ipipgo.com:30001',
    'http://user:pass@gateway.ipipgo.com:30002',
    ...prepare at least 20 entry points
])

for _ in range(100):
    proxy = next(proxy_pool)
    try:
        res = requests.get(url, proxies={'http': proxy}, timeout=10)
        print('Data acquired:', res.text[:50])
    except:
        print('This IP is useless, switching to the next one!')

Second trick: Master of Disguise
Just changing the IP isn't enough, you have to go all the way:
• Randomly change User-Agent with each request
• Include a reasonable Referer
• Simulate human click intervals (0.5-3 seconds random)
• Load JS when necessary (using a headless browser)

Third trick: IP quality must be excellent

Don't be greedy and use free proxies,ipipgo's high-quality proxies have these advantages:
• Real residential IPs (won't be flagged as data centers)
• Supports both socks5/http protocols
• Automatically cleans up abnormal nodes
• Pay-as-you-go pricing avoids wasting money