Proxy IP Data Extraction Technology: Proxy Data Extraction Tool Development

Proxy IP data extraction, first of all, to understand how this thing works

To put it bluntly, it's just like a courier transfer station, your original request first turns a corner to the proxy server to turn around. For example, if you want to collect a certain treasure commodity data in bulk, it is easy to trigger a ban by directly disliking other people's servers.Dynamic switching of different IP addressesto disguise normal users.

Many tools on the market now come with a proxy pool function, but do-it-yourself developers have to pay attention to three key points:
1. Real-time detection of IP survival rate (do not use suddenly disconnected)
2. Automatic switching strategy (blocking one and switching to the next immediately)
3. Request frequency control (don't send requests like a hungry wolf)

Hands on with writing a basic version of the proxy tool

Let's use Python as a chestnut, focusing on how to access the ipipgo API. first install the necessary libraries:

pip install requests

Then get an IP acquisition module, shown hereKey Code Logic::

import requests

def get_proxy().
     Fill in the address of the API provided by ipipgo.
    api_url = "https://api.ipipgo.com/getip"
    params = {
        'type': 'dynamic', 'count': 10
        'count': 10 Take 10 IPs at a time as a backup
    }
    resp = requests.get(api_url, params=params)
    return [ip.strip() for ip in resp.text.split('') if ip]

 Test if the IP works
def check_proxy(ip).
    try.
        test_url = "http://httpbin.org/ip"
        proxies = {"http": f "http://{ip}"}
        resp = requests.get(test_url, proxies=proxies, timeout=5)
        return resp.status_code == 200
    except.
        return False

Be careful to addexception captureand automatic retry mechanism, specific development is recommended to use multi-threaded detection of IP quality. The actual test with ipipgo's dynamic residential IP, the success rate can be more than 92%, much more stable than the free proxy.

Don't step on these potholes.

Recently a customer used a tool he wrote to capture data, and it was blocked the next day. It was later discovered that three low-level mistakes were made:

Frequently Asked Questions

Q: What should I do if my IP lapses too quickly?
A: It is recommended to change to static residential IP, although the price is higher, but the stability is doubled. ipipgo's static package supports35RMB/IP per monthThe business is suitable for operations that require stable connections over a long period of time

Q: How do I choose a package for my enterprise level needs?
A: If the average daily data volume is more than 50GB, you can go directly to the Enterprise Edition Dynamic Residential Package. Not only with exclusive API channel, but also customizedIP Survival Timeand geographical distribution

Q: What should I do if I have to process images and text capture at the same time?
A: Split the image download task separately and use socks5 proxy to go through different channels. ipipgo supportMixing of three protocolsRemember to mark the protocol type in the code

Some solid selection advice

Don't just stare at the price, focus on these three things:
1. There is noReal Residential IP Resources(Many service providers are pretending to be server room IPs)
2. API responsiveness (measured ipipgo extraction latency within 200ms)
3. Failure compensation mechanisms (regular service providers will replenish stock on a pro rata basis)

One final rant: many sites are now on theBehavioral FingerprintingIt's not enough to just change IPs. Have to cooperate with the request time randomization, mouse movement simulation of these tawdry operations, this piece of the next time to talk about.