Free proxy IP pool updated daily (with validation script)

Engage in proxy IP pool this matter, hand in hand to teach you to step on the pit less

Recently, some of my friends who do data capture have complained to me that free proxy IPs work like a blind box, and sometimes they don't. Today, we're going to talk about how to build a reliable free IP pool, and then teach you how to use scripts to automatically check your work. Today we will break off how to build a reliable free IP pool, and then teach you to use scripts to automatically check the work, guaranteed to see the end of the operation can get started.

Where to find free proxy IPs?

It's true that there are quite a few public sources of proxies on the internet, but one has to be carefulDon't just use any site... We recommend a few tested and stable sources of access:

• The "Resource Sharing Area" of the Technical Forum (note the date of the latest reply)
• GitHub starred over 100 open source projects (remember to look at the commit time)
• Trial interfaces for some cloud providers (this one requires fast hands)

Focused Reminder:Don't use a proxy list that's more than 3 days oldThe probability of failure is as high as 80%. It is recommended to collect once a day at 10:00 a.m. and 4:00 p.m. This time of day has the most new IPs emerging.

How do validation scripts work?

Light collection without validation is equal to the work for nothing, here to give a Python script template (take it to change can be used):

import requests
from concurrent.futures import ThreadPoolExecutor

def check_proxy(proxy)::
    try: resp = requests.get('')
        resp = requests.get('http://httpbin.org/ip',
                         proxies={'http': f'http://{proxy}'}, timeout=5)
                         timeout=5)
        return proxy if resp.json()['origin'] in proxy else None
    return None
        return None

with open('proxy_list.txt') as f.
    proxies = [line.strip() for line in f]

with ThreadPoolExecutor(20) as executor: alive_proxies = list(filter(None), executor.map(check))
    alive_proxies = list(filter(None, executor.map(check_proxy, proxies)))

Knockout:Remember to change the test URL to something related to your own business, such as doing e-commerce data capture with the e-commerce site to measure. Validation timeout set 3-5 seconds is the most appropriate, more than this time even if it can be used, but also delayed.

Top 3 Tips for IP Pool Maintenance

Focus on the grading strategy: label those with a response speed <500ms as grade A, and those above 800ms are directly eliminated. It is recommended to run the full volume test once a day in the early hours of the morning, so that the fresh IP pool can be updated before you go to work.

Can't be bothered to fold? Try a specialized program

Maintaining a free IP pool on your own is really laborious, like our team later switched to theProxy services for ipipgoAfterward, efficiency is directly doubled. There are two killer features in their house:

1. Minute-by-minute IP updates, N times more timely than free resources
2. Comes with a geographic customization feature, where you want the IP to be directly selected

Especially if you're doing a long term project, it's actually more cost effective when you factor in labor costs. Now use their homeFree 5G traffic for new users, enough for testing (search the official website yourself, I won't post the link here).

Frequently Asked Questions QA

Q: How long will the free agent last?
A: Measured average survival is 2-7 hours, so updates must be verified regularly

Q: Why do I keep encountering CAPTCHA?
A: The IP has been used by too many people, it is recommended to match with the exclusive IP service of User-Agent rotation + ipipgo.

Q: How do I choose an enterprise level program?
A: the daily request volume of more than 10,000 times directly on the paid agent, the free program simply can not carry. Like ipipgo's business package support API real-time extraction, than self-built pool to save a lot of heart.

One final note: Proxy IPs are a thing of the past."Fresh"Word, whether it is self-built or use ready-made, remember to always change the new. When you encounter technical problems that can't be solved, you can go to ipipgo's developer community to browse, there are many technical bulls there, and the response to questions is quite fast.