Crawler Agent: Anti-Blocking IP Rotation Service

IP is blocked to doubt life? Try this.

Brothers who do data crawling understand that the most crushing thing is to see the403 Forbidden. Last week an e-commerce price comparison brother told me that he just started the volume was blocked more than 200 IP, angry almost smashed the keyboard. Today we will nag how to use the proxy IP rotation this life-saving artifact.

Website IP blocking is like a DUI check

Website wind control system is now stricter than the subway security check, the same IP continuous access is like a traffic police in front of the snake walk. I have observed many cases.More than 30 requests per minute from a single IPThen you will be focused on the care. What's worse is that some platforms will blacklist and the blocked IPs can never be used again.

Top 3 Tips for Proxy IP Rotation

Recommended hereipipgo's mixed dialing service, their dynamic agent pool can really be played. There are three levels of specific play:

 Python example (remember to install the requests library first)
import requests

def get_data(url):
    proxies = {
        "http": "http://user:pass@gateway.ipipgo.com:9020",
        "https": "http://user:pass@gateway.ipipgo.com:9020"
    }
    try.
        response = requests.get(url, proxies=proxies, timeout=10)
        return response.text
    except Exception as e.
        print(f "Request failed, switching IP automatically | Error Message: {e}")

Tier 1: Basic Rotation - Different IPs for each request, suitable for general counter-crawling
Layer 2: Intelligent Routing - Automatically match server room nodes according to the location of the target website
Layer 3: protocol camouflage - Emulate browser fingerprinting, you have to use ipipgo's enterprise version for this one

Comparison of measured data

Take an e-commerce platform has done the test, continued to crawl for 24 hours:

Common Pitfalls QA

Q: What should I do if my proxy IP is slow?
A: Choose a node that is close to the target server, ipipgo's intelligent routing can automatically choose the optimal line

Q: How can I tell if a proxy is in effect?
A: Put a test in the code, e.g. visit http://ip.ipipgo.com/checkip会返回当前使用的IP

Q: Do I need to maintain my own IP pool?
A: Never! We raised our own IP pool before, the maintenance cost is three times more expensive than buying the service. Directly buy ready-made to save heartache, ipipgo's survival rate can reach 95% or more!

Tell the truth.

I've seen too many people use free proxies on the cheap, and as a result, the data is lost to the mother and father do not recognize. The regular proxy service providers like ipipgo, although it costs money, but it can guarantee thatDedicated IP+Automatic CleaningThe problem is that it is not possible to get the IP address of a company to be blocked. Especially if you are doing commercial crawling, the loss of data breakage due to IP blocking can be much higher than the proxy fee.

Lastly, don't set the timeout too short! Some brothers set the timeout to 1 second for the sake of speed, and the result is fewer valid requests. According to our test.5-8 second timeoutCombined with automatic retries for maximum overall efficiency.