Proxy IP web crawling program: web crawling proxy configuration program

Teach you to use a proxy IP to engage in web crawling!

What are you most afraid of when it comes to data capture? Today we will nag how to use proxy IP to solve this problem. Do not organize those false, directly on the dry goods.

Three-step program design

Step 1: Figure out the target site temperament
Don't be in a hurry, first observe the anti-climbing mechanism of the website. Some websites block IP in 30 seconds, some want CAPTCHA, some simply play dead. Take an e-commerce platform, 20 consecutive visits to the black, this time to rely on proxy IP rotation.

Step 2: Choose the right type of agent

Step 3: Practical Configuration
Take Python as an example, use ipipgo's API to extract proxies, and remember to set the timeout and retry mechanism:

import requests
from itertools import cycle

def get_proxies():: This is where you fill in the ipipgo API address.
     Fill in the API address of ipipgo here.
    api_url = "https://api.ipipgo.com/getproxy"
    return [f"{ip}:{port}" for ip in ip_list]

proxies = cycle(get_proxies())

for page in range(1,100): current_proxy = next(proxies)
    current_proxy = next(proxies)
    current_proxy = next(proxies)
        current_proxy = next(proxies) try. resp = requests.get(target_url,
            proxies={'http': current_proxy}, timeout=10)
            timeout=10)
         Processing data...
    except: print(f "IP {current_proxy}")
        print(f "IP {current_proxy} is down, move to the next one")

Don't overlook maintenance tips

1. IP Survival Detection: Every half hour with https://httpbin.org/ip测连通性
2. Automatic switching strategy: Automatic IP change by request count or response time
3. The Great Disguise: Remember to assign random User-Agents and visit intervals.

Frequently Asked Questions QA

Q: What can I do about slow proxy IPs?
A: Try ipipgo's TK line, which is specially optimized for transmission lines. If it is still stuck, check if the target web server is abroad, and change the IP of the local operator.

Q: What should I do if I keep getting my IP blocked?
A: three tricks: ① change static residential IP ② reduce the frequency of requests ③ plus CAPTCHA recognition module. ipipgo's exclusive static IP package success rate can be 95% or more.

Q: How do I choose an offshore site to catch?
A: directly with ipipgo cross-border line, such as grabbing the Japanese site on the NTT/SoftBank line IP, the delay can be controlled within 200ms.

Why ipipgo?

Having used the service in my own home for over two years, these few advantages really top:
1. The price is tough.: Dynamic IP as low as 7 dollars more than 1G traffic, cheaper than buying milk tea
2. Complete agreement: socks5/HTTPs are all supported, two taps in the app and it works!
3. lifeline: When you encounter a difficult website, find customer service to open a TK line to solve the problem in minutes!

Newbies are advised to buy the Dynamic Residential Standard Edition first to test the waters, and older drivers who do cross-border e-commerce go directly to the Enterprise Edition. Need a fixed IP login, 35 dollars / month static package is the most cost-effective. Catch data this thing is about a long stream, choose the right tool to get twice the result with half the effort.