Proxy server website TOP list: global node real-time speed measurement platform

The real significance of the existence of speed measurement platforms

A lot of newbies always think that a free speed test site will be all right, the results of the use of the IP either can not connect, or the speed of a snail crawl. A truly reliable speed test platform must have three hardcore conditions:Real-time updated node database,Multi-protocol compatibility testing,Real business scenario simulationThe first thing you need to do is to get a good deal of information about the nodes. For example, you test the United States IP, the platform must be able to distinguish between Los Angeles or New York nodes, after all, the East and West Coast latency can be out of 200ms.

Recently, I met a cross-border e-commerce old man, using a speed test platform shows a delay of 80ms, but the actual running data frequently timeout. Later found that the platform only measured the ICMP protocol, and their business with the HTTPS interface, the underlying TCP handshake did not pass the test. This is like using body temperature to measure the temperature of the water - it's not the same thing at all.

You may not have seen these speed cameras before.

Three battle-tested speed measurement programs are recommended:

 The essential speed test script for terminalists
curl -x http://username:password@gateway.ipipgo.net:port
-w "TCP Handshake:%{time_connect} First Packet Response:%{time_starttransfer}"
-o /dev/null -s "https://ipipgo.com/ping"

This command can accurately measureReal business delaysIt's a lot better than those fancy web tools. Last week, I helped a friend to tune a crawler project, and using this method, I found that the average first packet response of an agent was surprisingly 3 times slower than the nominal value!

Look for hidden indicators when choosing a service provider

The market common agent service providers publicize the same thing, but there are three key indicators they absolutely do not dare to write:IP recovery cycle,ASN Breadth of Distribution,Failed request retry mechanism. I've used a certain dynamic IP before, and although it claimed to be a ten million resource pool, it turned out that all 90% IPs were concentrated in three data centers.

I have to settle for ipipgo's Dynamic Residential Agent here, they have aIntelligent Route OptimizationThe black technology. To give a chestnut, do cross-border e-commerce friends need to visit the Amazon U.S. and Japan stations at the same time, the system will automatically assign the corresponding area of the residential IP, unlike some service providers are given to the data center IP, moving to trigger verification.

QA Session: A Guide to Avoiding Pitfalls

Q: How to solve the problem of proxy IP speed is fast and slow?
A: Eighty percent of the shared IP pool, try ipipgo's static residential package. There was a team doing SEO monitoring last week, and the collection speed stabilized within 200ms after switching to a static IP.

Q: How do I detect the true anonymity of an agent?
A: Run it in the terminalcurl -x proxy IP ifconfig.io/allIf you want to see if there is any X-Forwarded-For header information in the return result, ipipgo's residential IP has done a good job and will not expose the user's real network environment.

Q: What package should I choose for my enterprise-level needs?
A: Directly on ipipgo Dynamic Residential Enterprise Edition, supportsession holdrespond in singingCity-level positioning. Last year, there was an e-commerce company using it to grab inventory on double eleven, and the success rate was more than 40% higher than the competition.

Practical Configuration Manual

Take the Python crawler as an example of a properly configured proxy pose:

import requests

proxies = {
    'http': 'socks5://user:pass@gateway.ipipgo.net:40000',
    'https': 'socks5://user:pass@gateway.ipipgo.net:40000'
}

 Key parameter settings
response = requests.get('https://target.com',
    proxies=proxies, timeout=(3.05, 27), connection timeout and read timeout
    timeout=(3.05, 27), separate connection timeout and read timeout settings
    headers={'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36'}
)

Watch this.Double timeout parameterThe setting can effectively avoid zombie connections eating up your thread pool. Previously, a customer did not set the read timeout, resulting in the program stuck for a whole night, a lesson in blood and tears ah!