Proxy Capture: Proxy IP Capture Methods

What does proxy capture really do?

Brothers who engage in data collection understand that the website anti-crawler is now more and more refined. Last week an e-commerce friend complained that they use their own servers to catch the price of competing products, the result is less than three days IP was blocked to death. At this time, if the hand clutching a few groups ofProxy IPs that are alive and kickingIt's like playing a game with a plug-in and being able to change your armor and keep working.

Free agents really smell good? Beware of falling into the pit

Online casually search proxy IP, can pull out a bunch of free listings. But old drivers know that these free resources have at least three major pits:
1. The survival rate is abysmal.Nine times out of ten, you won't be able to connect.
2. Response speed is like a snail, loading a page can kill people in a hurry
3. Security is a mystery, or all the data will be leaked.

Here is a real case: last year, a company used a free agent to catch the data, and the result was that the crawler program was implanted with a mining script, and the server directly shut down for 8 hours. So professional things are still given to professional platforms, like theipipgoThis kind of offers commercial-grade proxy services, which at least guarantees a clean and reliable IP pool.

Hands-on with three acquisition positions

Position 1: Open Source
While not recommended, a simple collector can be written in Python in an emergency:

import requests
from bs4 import BeautifulSoup

url = 'a free proxy site'
resp = requests.get(url)
soup = BeautifulSoup(resp.text, 'html.parser')
 Write the parsing logic here...

Note to add a timeout retry mechanism, it is recommended to work with ipipgo'sSurvival Detection APIFiltering of lapsed IPs.

Position 2: API Direct
That's the proper way to go, and in the case of ipipgo, their API documentation is so clear that an elementary school student could read it:

import json
def get_proxies():
    api_url = "https://api.ipipgo.com/proxy/get"
    params = {
        "key": "Your key",
        "count": 10,
        "protocol": "http"
    }
    response = requests.get(api_url, params=params)
    return json.loads(response.text)['data']

Test this interfaceYou get 50 available IPs in 3 seconds., also with geo-location labeling.

Position 3: Mixed Doubles
Mixing free proxies with commercial proxies keeps costs down and ensures stability. Remember to use ipipgo'sIP Quality Scoring SystemDo the prioritization and use the red markers with a response speed of 200ms or less first.

A practical guide to avoiding the pit

Recently, I helped a friend build a film and television data collection system, and summarized three bloody experiences:
1. Concurrent controlDon't be too aggressive, don't make more than 3 requests per second from a single IP.
2. Don't be tough when you encounter CAPTCHA, change ipipgo'sResidential Agentsmore secure
3. Regularly clean up logs, do not let the target site to catch the handle

White Frequently Asked Questions QA

Q: What should I do if the proxy IP is not working just now?
A: Election of supportvolumetric billingservice providers, like ipipgo's dynamic IP pool that automatically changes every 5 minutes, are much more flexible than monthly packages.

Q: How do I verify if a proxy is truly anonymous?
A: Use this detection script:

Detection site = "http://httpbin.org/ip"
proxies = {"http": "http://代理IP:端口"}
resp = requests.get(detection site, proxies=proxy configuration)
print(resp.json()) It's not your real IP as long as it's displayed

Q: How do I choose a service provider for my enterprise-level needs?
A: Focus on three things:
1. IP pool size (ipipgo has 20 million + resources)
2. Response time (average <150ms preferred)
3. Protocol support (HTTP/HTTPS/Socks5 fully compatible)

Let's get real.

Engage in agent acquisition is like raising fish, both will fish more will raise fish. Free resources are like wild fish, looking at more but difficult to serve; ipipgo this kind of professional services likemodernized fishing groundThe first thing you need to know is what fish you want to fish for at any time. Especially their new dynamic residential agent, camouflage degree directly pull full, used all say really fragrant.