Free proxy resources: high-quality free proxy IP

Are free agents really reliable? First look at these three pitfalls

Recently, a lot of friends asked me: online those free proxy ip in the end can not use? I have to be honest about this--Free lunches do happen, but the odds are that it's going to hurt your teeth.. I've tested a dozen free proxy platforms on my own before:

• Super 60%'s proxy can't connect, it's either a turtle speed
• The ip with 30% was blacklisted by the site a long time ago
• Worst of all, some agents will secretly record your actions

But then again, it's not completely impossible to use. The key is to be able to choose, like the kind of claimed "permanent free", directly pass on the right. Reliable free agents generally havelimitation period, such as a limited number of pickups per day, or only available for an hour or so.

Hands-on treasure digging: sifting through the free agent wilderness

Finding free agents is like panning for gold, you have to filter it through layers of sieves. Here is afour-step screening process::

import requests

def test_proxy(proxy)::
    try: resp = requests.get('', 'proxy', 'request', 'request')
        resp = requests.get('http://httpbin.org/ip',
                          proxies={'http': proxy, 'https': proxy}, timeout=5))
                          timeout=5)
        return True if resp.status_code == 200 else False
    return False if resp.status_code == 200 else False
        return False

 Assuming you have a list of proxies
free_proxies = ['1.1.1.1:8080', '2.2.2.2:3128'...]
valid_proxies = [p for p in free_proxies if test_proxy(p)]

Remember to measure three indicators:responsiveness(Don't exceed 3 seconds),Anonymous rank(at least hide the real ip),Protocol Support(http/https both to be measured). Here a word of advice, before I use ipipgo home detection tool is quite convenient, directly save the effort of writing code.

The right way to open a free agent

Even if you find an available proxy, don't dislike it directly into the project. Let's share a fewlife-saving technique::

To give a real case: there is an e-commerce price comparison of friends, with free agents always be blocked. Later, he switched to ipipgodynamic rotation poolThe success rate soared directly from 30% to 95%, in conjunction with the free agent as a backup.

Why do older drivers use ipipgo?

To be honest, free proxies are fine for practicing, but if you really want to work, you have to use professional tools. Take ipipgo for example, a few hardcore advantages are free proxies can not compare:

• ⏰ Survival rate guaranteeThe people have automatic inspection system, the failure of ip seconds off the shelves
• 🔒 encrypted tunnel: Not like free agents transferring data naked
• 🌍 Geographically accurateI'll never give you Guangzhou's ip if I want Shanghai's ip.

bottom line is this.cost-controllableHe has a 1G traffic trial for new users. I've done the math before when I helped my company purchase: using a free agent may seem to save money, but with the cost of labor and maintenance, it's twice as expensive as buying professional services directly.

QA time: what you might want to ask

Q: Does the free proxy compromise privacy?
A: It's really hard to say, last year a crawler group friend was hit. It is recommended to use ipipgo when sensitive operations are involved.Privacy Agreement Certificationof service providers.

Q: How can I tell if an agent is highly anonymous?
A: Visit http://httpbin.org/headers, if there are no fields like via and x-forwarded-for in the returned header, it's basically a high stash. Or just use ipipgo'sAnonymity Detection InterfaceSave your time.

Q: Are paid agents expensive or not?
A: Take ipipgo for example, the basic version is less than a cup of milk tea money per day. If the program is earning more than that, it's truly recommended not to be stingy with the agent.

One last rant:Tools determine the upper limit of efficiency. Instead of looking for a needle in a haystack of free agents, you can spend your time with a professional service. After all, the time saved will allow you to take on a few more projects, won't it?