Public proxy ip pool: public proxy ip pool resource maintenance program

How do you play the public proxy IP pool without flipping?

Crawler friends should understand that the public proxy pool is like the market of rotten leaves - large enough but of varying quality. Last month, when I helped a friend to maintain a data collection system, I found that the free proxy pool they usedAverage speed of expiration is less than 15 minutesThe most outrageous times are when the IP is scrapped in ten seconds after it is just taken out. At this point it is necessary to rely on a reliable maintenance program to continue to live.

A Guide to Avoiding the Three Pitfalls

Maintaining a public agency pool is like keeping fish; if the water quality is not good the fish die fast. There are three major common pitfalls:
1. Blacklisted IPs pile up (especially if you do e-commerce data collection)
2. Response speed like a snail's crawl (a certain test found that the IP delay of 30% was more than 8 seconds)
3. Incomplete protocol support (some only support HTTP but advertise it as full protocol)

 Example of a Simple Survival Detection Script
import requests
from concurrent.futures import ThreadPoolExecutor

def check_proxy(proxy)::
    try: resp = requests.get('')
        resp = requests.get('http://example.com', proxies={'http': proxy}, timeout=5)
        return proxy if resp.status_code == 200 else None
    return None
        return None

 Use ipipgo's API to get the latest pool of proxies
fresh_proxies = requests.get('https://api.ipipgo.com/proxy-pool').json()
with ThreadPoolExecutor(20) as executor:
    alive_proxies = list(filter(None, executor.map(check_proxy, fresh_proxies)))

four-step system for raising a pool

Here's a homemade one to share"Living Water Cycle Method"::
1. time-sharing: 2-5 a.m. replenishment of new IP (measured survival rate increase of 23% at this time)
2. Three-stage filtersThe first use ping test to sieve out the 30% zombie IP, and then use header detection to eliminate the fake IP.
3. dynamic scheduler: Tag each IP (response rate/success rate/geography) and triage requests like a hospital triage desk
4. Intelligent Retirement Mechanism: 3 failed requests in a row directly into the blacklist, do not be soft!

Good choice of tools. You'll be home early from work.

It's too much work to build your own wheels, so we recommend going straight to theProxy pooling scheme for ipipgo.. Their dynamic residential IP has a hack - theCarrier-grade IP rotationThe last time we did cross-border e-commerce data collection, we didn't trigger the anti-climbing mechanism for 7 consecutive days. Specific advantages look at this comparison table:

Frequently asked questions on demining

Q: Can I make do with the free agent pool?
A: Small-scale testing is fine, but doing serious projects is like building a house out of cardboard - it looks livable, but collapses when the wind blows. Last week, a user used a free pool on the cheap, which triggered the CAPTCHA of the target website, and the data collection directly stopped for three days.

Q: Do I choose a dynamic or static package?
A: do crawlers preferred dynamic residential (enterprise version), the need for fixed IP login scenarios with static. ipipgo'sDynamic Enterprise PackageSupports session hold function to simulate the operation of a real person more naturally.

Q: How to control the frequency of API calls?
A: It is recommended to set up a double buffer queue and automatically replenish new IPs when the main queue utilization rate reaches 70%. ipipgo API supportIntelligent Rate ControlIf you have a request, it will be automatically expanded in case of a sudden request.

Finally, a piece of cold knowledge: maintaining a proxy pool is like stir-frying vegetables, the fire is very important. Don't wait for all the IPs to hang up before you add them. It is recommended to set the30% redundancyThe following is an example of the kind of work that can be done in a company. Recently helped customers migrate to ipipgo's program, the operation and maintenance workload directly cut in half, is considered a pleasant surprise.