What is the principle of proxy IP: technical architecture and workflow analysis

The story of the courier who changed his vest

Imagine a courier boy wearing a different color overalls for each delivery, and the recipient would not recognize the same person. That's how proxy IPs work-Send web requests through an intermediary server that "switches" for you.The first thing you need to do is to use your own WiFi to access the website. For example, if you use your own WiFi to visit the website, the website sees the address 192.168.1.1, but after the transit through the proxy, the other party can only see the address of the proxy server, just like a courier cabinet to help you receive packages.

Three axes of technical architecture

Proxy services are really just three core components:

User device → Proxy server → Target site
      (Reformatting) (Anonymous access)

1. Client configuration: just like setting up a new WiFi for your cell phone, fill in the proxy address and port number in the device
2. Traffic tunneling: data is encrypted, like a waterproof bag on a courier parcel
3. Resource scheduling: high-quality proxy service providers will automatically switch IP pools, such as ipipgo has an intelligent routing system that can automatically avoid congested nodes

Workflow in eight steps

Take a real case: a user wants to collect e-commerce data but is afraid of being blocked
① Select the "Dynamic Residence" package in the ipipgo client.
② Get the proxy address such as 122.123.45.67:8080.
③ Implanting proxy settings in the crawler code
④ The request is sent to the proxy server first
⑤ Automatically assigning new IPs (e.g., switching to a residential IP in Tokyo, Japan)
⑥ Encrypted forwarding to the target site
⑦ The website returns data to the proxy
⑧ The final result is returned to the user device

Three must-know scenarios

Data collection against blocking:Dynamic IP rotation, different "armor" for each request.
Account Multi-Open Management:Static IP maintains a fixed identity, suitable for scenarios that require stable login
Essential for software testing:Simulate the access of users from different regions to detect the geographical restriction function of the system

Frequently Asked Questions First Aid Kit

Q: How did the site find out I was using a proxy?
A: Low quality proxies will have this problem. It is recommended to choose ipipgo's TK dedicated proxy, their IPs are real home broadband with full HTTP headers!

Q: How do I choose between dynamic and static packages?
A: If you need to change IP frequently, choose dynamic ($7.67/GB), and if you need to fix your identity, choose static ($35/IP). Like managing 50 social accounts, using a static IP can avoid frequent verification

Q: How do I access the agent in the code?

import requests
proxies = {
    'http': 'http://用户名:密码@gateway.ipipgo.net:9020',
    'https': 'http://用户名:密码@gateway.ipipgo.net:9020'
}
resp = requests.get('destination URL', proxies=proxies)

Hands-on package selection guide

Special mention to ipipgo'sEnterprise Customized SolutionsLast time, there is a cross-border e-commerce customers, they need to use the United States, Germany, Japan at the same time the IP to manage different stores, the technology brother to do an automatic switching program, the monthly cost of buying three packages than a separate 40% savings!

Guide to avoiding the pit

① Do not buy cheap on the market "universal proxy", many are virtual machines, IP a check will wear gangs!
② pay attention to protocol matching, do video capture to use socks5 protocol
③ Test period is very important, ipipgo all packages support 3 days trial, test before you buy!

Finally, the nagging sentence, choose the agent service is like looking for a partner, the most important thing is appropriate. Some friends come up to ask "how much is the most expensive package", in fact, according to the amount of business selection is cost-effective. Like buying clothes, daily wear choose basic models, important occasions and then on the customized models.