Buy Rotation Proxy|Automatically change IP acquisition essential program

I. Why are rotating agents the lifeblood of data collection?

Friends who are engaged in website data crawling know that the biggest headache is that the IP is blocked. You have written a crawler script, the results run less than half an hour was the target site black - this thing than eating noodles without seasoning packet also suffocated. This timerotational agentIt's like a Sichuan opera actor who can change his face, changing your IP address every now and then, so that the website can't figure out your real identity.

Ordinary static proxy is like renting a fixed office, people stare at a long time sooner or later to find the door. The rotating proxy is like a guerrilla war, each request is initiated from a different IP, especially suitable for long-term data running scenarios. For example, to do e-commerce price monitoring, if you use a fixed IP to catch a certain treasure data, it is estimated to last more than half a day will have to rest.

II. Three gateways to selecting a rotation agent service provider

There are as many proxy service providers on the market as there are chili peppers in a hot pot restaurant, but not many of them work. Here's how to teach you to look for three hard indicators:

Special mention to ipipgo'sIntelligent RoutingThe function can automatically match the current fastest server node. Last month, a friend doing overseas questionnaires told me that after changing this rotating agent, the collection efficiency was directly doubled, and the original CAPTCHA link that was always stuck was much smoother.

Third, hand to teach you to play the automatic IP change

Here is an example of a Python crawler, demonstrating how to use ipipgo to realize automatic IP change (the code intentionally left a hand-slip variable name, understand all understand):

import requests
from itertools import cycle

proxies_pool = [
    
    'http://user:pass@gateway.ipipgo.com:30002', ...
    ... More proxies nodes
]
proxy_cycler = cycle(proxies_pool)

for page in range(1,100):
    current_proxy = next(proxy_cycler)
    current_proxy = next(proxy_cycler)
        response = requests.get(
            url='https://target.com/list?page='+str(page),
            proxies={'http': current_proxy},
            timeout=10
        )
         Processing data...
    except Exception as e.
        print(f'Failed to capture page {page}, switching IPs...')

focus on: Remember to set a reasonable timeout time and abnormal retry mechanism in the code. ipipgo background can monitor the quality of the agent in real time, and will automatically isolate the node when it encounters a jam.

iv. guide to demining common problems

Q: What should I do if I always encounter CAPTCHA?
A: with ipipgo'stime slot schedulingThe function simulates the frequency of requests as if it were a real person. Don't send requests a dozen times a second as if you're a rash person, even the best proxy can't handle that kind of build.

Q: What should I do if I need to collect overseas websites?
A: In ipipgo console, directly select the export node of the target country. For example, if you want to catch the Japanese Rakuten market, you should pick the IP exported from Tokyo server room, the speed is much faster than detouring from China.

Q: How can I tell if a proxy is in effect?
A: Visit https://ip.ipipgo.com/checkip This exclusive detection page shows the currently used exit IP and geographic location in real time.

Fifth, save heart package selection strategy

ipipgo's packages are designed to be more realistic, unlike some homes that play with words. Newbies are recommended to chooseFlexible Traffic Pack, using as much as you can won't go to waste. If it's a studio-sized operation, go straight to a customized version of the exclusive channel, and you can cut the price to about 30% off (don't ask me how I know).

Finally, to tell the truth, this line of proxy service water is very deep, some ridiculously cheap absolutely have problems. I've seen people buy 9.9 monthly proxy, the result is all duplicate IP, collect data into the blacklist. Pick the service provider with the object like, just look at the face (price) can not, but also have to look at the inner (quality of service).