What the heck is a multi-layer proxy IP?
To put it in human terms, it's like a nesting doll, stringing multiple proxy servers together and using them. For example, you connect from Shanghai to a proxy in Hong Kong, then jump to a proxy in Singapore, and finally visit the target site. There are two advantages to doing this:The first is to hide deeper, the target site can only see the last layer of proxy information;The second is a more stable businessIf you have a problem with one of the proxies, you can switch between them quickly.
But be careful not to complicate a simple problem, ordinary users with a single layer of proxy enough. It is usually these cases that require multiple layers of proxies:
- Cross-border e-commerce to simulate multinational user behavior
- Anti-crawling mechanism for data collection
- Enterprise-level security audit trails
Hands-on with a three-tier proxy chain
Here's a chestnut in Python, using the requests library to implement a three-level proxy. Let's say we've got three proxy IPs from ipipgo for three different regions:
import requests
Tertiary proxy chain configuration (using ipipgo's Socks5 proxy example here)
proxies = {
'http': 'socks5://user001:password@hk01.ipipgo.net:3000',
'https': 'socks5://user001:password@sg02.ipipgo.net:3001'
}
Ultimate proxies go to the Japanese node
session = requests.Session()
session.proxies.update({'http': 'socks5://user001:password@jp03.ipipgo.net:3002'})
The actual request
response = session.get('http://target-site.com', proxies=proxies)
Notice there's adefraud: Different layer agents must use nodes in different regions! For example, the first layer uses Hong Kong, the second layer uses Singapore, the third layer uses Japan. If you use all the same region, it is no different from a single-layer proxy.
Five Key Points for Safety and Security
| risk point | method settle an issue |
|---|---|
| IP leakage | Regularly check for broken proxy chains |
| traffic hijacking | HTTPS protocol transmission only |
| have one's cover blown | Separate accounts for each level of proxy |
| speed delay | Choose a dedicated proxy (e.g. ipipgo's TK line) |
| Logging residuals | Enable Agent Auto Erase Logging |
Why do you recommend ipipgo?
Having used several proxy services, there are just three reasons why ipipgo ends up locking up:
- The line is wild.Their cross-border private line is a real local operator line, unlike some service providers who take the IP of the server room to fill up the number.
- The agreement is complete.
- The aftermarket is top notch: Last time there was a problem with the configuration at 3am, tech support gave a solution in 10 minutes!
Especially theirDynamic Residential Enterprise PackageIf you are looking for a new package for data collection, you can save at least 30% of proxy cost by using this package.
Guidelines on demining of common problems
Q: What should I do if the Internet speed slows down after configuring the proxy chain?
A: First, check the proxy latency of each layer, use the speed measurement tool that comes with the ipipgo client, and replace the nodes with high latency. If the total delay of the three layers of proxy is more than 800ms, it is recommended to reduce the layers of proxy.
Q: How to troubleshoot the sudden failure of the proxy chain?
A: Check in this order: 1. whether the account is in arrears 2. whether the proxy port is correct 3. whether the protocol matches (e.g. use socks5 to connect to the http port) 4. local firewall settings
Q: How to ensure the stability of the proxy chain?
A: three secret weapons: ① open ipipgo intelligent routing function ② set up a backup proxy pool ③ use a long time static IP (although expensive but stable as an old dog)
One last rant:Multi-level agency is not a panacea! It needs to be flexibly adjusted according to business needs. For example, if you are doing overseas questionnaires, you should use dynamic residential agents, and if you are doing enterprise-level risk control, you should use static residential agents, so don't follow the wind and pile up the number of agent layers.
English 
简体中文 
Español 
Deutsch 
Français