
When the server shows you the wrong way.
Lao Zhang's crawler program suddenly hangs, the console pops up a 305 status code. This is like a courier guy saying, "This package must be forwarded to the neighborhood property owner for collection," and the server explicitly tells you that you must go through a proxy in order to get the data. If you don't have a reliable proxy IP, it's like standing in front of your house without a key.
Why do I have to use a proxy IP?
The server return 305 is similar to a security checker stopping someone, and is common in these situations:
1. The target website is open to IP wind control
2. Specific region IP is restricted
3. High-frequency access triggers protection
Using ipipgo's Dynamic Residential Proxy at this time is equivalent to changing a "temporary pass" every time you visit. Their IP pool has more than 2 million residential IPs, more than the variety of beverages on the shelves of a convenience store.
Hands-on configuration of proxy redirection
Using Python's requests library as an example, configuring a proxy is easier than cooking instant noodles:
import requests
proxies = {
'http': 'http://username:password@gateway.ipipgo.com:9020',
'https': 'http://username:password@gateway.ipipgo.com:9020'
}
response = requests.get('destination URL', proxies=proxies)
focus on: Remember to change the username to the name of the sub account in the ipipgo account, and use the exclusive key for the password. Their backend can generate ready-made proxy links directly, copy and paste and it will work.
Black technology that automatically switches proxies
When encountering scenarios that require constant requests, it is recommended to go on auto rotation mode. ipipgo's smart routing feature can automatically match the best IP type based on the anti-crawl strategy of the target website:
| Website Protection Levels | Recommended IP type | Switching frequency |
|---|---|---|
| primary defense | Data Center IP | Every 5 minutes |
| medium level protection | Static Residential IP | Every 30 minutes |
| Advanced Protection | Dynamic Residential IP | Per request |
A practical guide to avoiding the pit
Three common mistakes newbies make:
1. use free proxies (99% are invalid)
2. repeated use of a single IP (immediately blocked)
3. forget to set the timeout time (stuck program)
It is recommended to enable it in the ipipgo backendfail and try againfeature, their API returns available IPs in real time, which is much less of a hassle than writing your own retry logic.
Frequently Asked Questions First Aid Kit
Q: What should I do if all the proxy IPs suddenly fail?
A: Click the "Emergency Refresh" button on the ipipgo console, and the whole set of IP segments will be updated within 5 seconds, which is much faster than rebooting the router.
Q: How do I test if the proxy is valid?
A: They provide a specialized testing interface, send a test request to see the real export IP
Q: How do I manage multiple agents at the same time?
A: With ipipgo's teamwork feature, you can create independent IP pools for different projects, and assigning permissions is as easy as playing Tetris!
Tell the truth.
The proxy thing is like raising fish, the water quality (IP quality) is not good and then good fish (program) can not live. ipipgo's unique feature is that there is a specialized IP maintenance team, every day out of the 15% old IP to add new resources to keep the IP pool like a living water flow. Next time you come across a 305 status code, don't rush to change the code, first try to change a good proxy IP, there may be a surprise.

