How to Get Free Proxies: A Guide to Getting Public Resources

Hands-on teaching you to whore out proxy IP resources

Friends engaged in network crawlers understand that free proxy IP is like the milk tea store tasting cup - although the amount is not large, but can quench the thirst. Today we chatter how to dig out from the nooks and crannies of the free proxy can be used, and by the way, Amway a reliable paid channel ipipgo (later will be described in detail).

Public Website Gold Rush

There are some sites on the Internet that specialize in updating proxy lists, like Western Spur, Fast Proxy, and these old-school sites that put out dozens of temporary IPs every day. but be careful!The three pits.1. survival time may be a few minutes 2. need to manually test the availability 3. some IPs have long been invalidated still hangs

 An example of a Python IP test
import requests
proxies = {'http': '123.45.67.89:8080'}
try.
    res = requests.get('http://httpbin.org/ip', proxies=proxies, timeout=5)
    print('This IP still works!' , res.json())
except.
    print('This IP is deprecated')

API interface bulk harvesting

Some platforms provide free API interfaces, such as ipipgo's experience package can receive 50 IPs per day (not an advertisement, pro-test does work). Sign up and get such an interface:

https://api.ipipgo.com/free?key=你的密钥

The return data looks like this:

{"ip": "112.95.93.208", "port":8866, "expire": "2023-08-20 14:30"}

Tech Forum Pick Up Tips

Github, CSDN and other places often people share proxy pool project, remember to look for the recently updated. There is a wild way is to search in the posting bar "proxy IP mutual aid", some crawlers old brother will exchange resources. But beware!Three traps.::

Self-Built Proxy Pool Survival Guide

Get a script to automatically brush free IP, stored in the database to verify regularly. The core of the two steps: 1. multi-threaded to catch different sources 2. verification of the random selection of the target site. Here we recommend ipipgoLong-lasting static IPIt's a lot less work than building your own, and it's especially good for scenarios that require stability.

QA First Aid Kit

Q: What should I do if the free agent always drops out?
A: Free IPs are like shared bicycles, they get stuck when more people use them. To be stable, you have to use professional services like ipipgo, whose IP survival rate can reach over 98%.

Q: How can I avoid getting my IP blocked by the target website?
A: The key to control the frequency of visits, free IP is recommended no more than 2 times per second. ipipgo's rotating pool supports changing IP per request, especially suitable for high-frequency collection needs.

Q: What should I do if the proxy IP is suddenly unavailable?
A: First check the local network, then use online tools to test the proxy connectivity. If you need to use it urgently, you can directly go to the background of ipipgo and click "Emergency Replacement" to switch to a new IP in seconds.

In the end, free agents are suitable for practicing and small-scale needs. Really want to work on professional tools, like ipipgo recently in the experience of activities, new users to send 3 days of enterprise-class agent pool, enough to test the feasibility of the project. After all, time is money, rather than tossing free IP, it is better to spend energy on the core business.