Web Crawling Proxy: Distributed Crawling IP Solution

Why is your crawler always blocked? It all starts with the IP

Brothers who have engaged in web crawling understand that the biggest headache is that the target site suddenly dumps a403 forbiddenThe first thing I want to do is to make sure that you have a good idea of what you are doing. Last week there is a price comparison website old brother to find me complaining, his family's crawler for three consecutive days by an e-commerce platform blocked 17 times, anxious straight hair pulling.

That's the problem.Single IP High Frequency AccessOn. Just like you go to the supermarket to buy goods, every time you wear the same clothes to drive the same truck, the security guards do not stare at you to stare at who? Now a lot of websites are equipped with intelligent wind control, the same IP request more than 5 times per second will be directly blacklisted.

Three Pain Points of Distributed Crawlers

1. Not enough IP resources: High maintenance costs for self-built agent pools, just like a fish pond where you have to change the water every day!
2. The geographic location is revealing.: It is clear that the data should be collected from the south, but the IP is shown in the northeast.
3. Fingerprints are recognizedEven if the IP is changed, the browser characteristics remain the same.

 Typical error cases (don't learn)
import requests
for page in range(1,100): response = requests.get(f"{page}")
    response = requests.get(f "https://xxx.com/page/{page}") Crazy request with same IP

IP pool rotation program in action

Recommended hereDynamic Residential Proxy for ipipgoThe IP pool of their family has a black technology - each request automatically switch city + operator. The actual test of a recruitment website's wind control strategy, with the ordinary agent 10 minutes to be ban, change his family agent after continuous collection of 6 hours are fine.

Python Crawler Access Hands-on

Use ipipgo's API three lines of code to access it, and be careful to set up thesession hold timeIt is suspicious to switch IPs too often:

import requests

def get_proxy().
     Get dynamic proxy from ipipgo (remember to replace your API key)
    return {
        'http': 'http://user:pass@gateway.ipipgo.com:9020',
        'https': 'http://user:pass@gateway.ipipgo.com:9020'
    }

resp = requests.get('https://目标网站.com',
                   proxies=get_proxy(), timeout=10)
                   timeout=10)

Frequently Asked Questions

Q: What should I do if I slow down after using a proxy?
A: Go with ipipgo'sBGP High Speed LineThe latency can be controlled within 200ms, which is more than 3 times faster than self-built agents.

Q: What if I need a specific city IP?
A: Choose at their home consoleurban positioningfunction, for example, as long as the Shenzhen Unicom IP, can be accurate to the district level

Q: How do I break the CAPTCHA when I encounter it?
A: with ipipgo'sIP Reputation Protectionfunction, automatic filtering of high-risk IP, measured CAPTCHA trigger rate reduced by 80%

Tell the truth.

I've seen too many teams fall on the proxy IP, have their own proxy server results in the operator blocked ports, there are greedy cheap to buy low-quality proxy anti-website black. Now that the various platforms are getting smarter and smarter, instead of spending time tossing around open source solutions, it's better to use ready-made professional services. ipipgo has aFree trial for new usersActivity, first white whoring two days to test the effect of the most real.