Long-lived proxy IP crawling tips: Configuration methods for maintaining persistent connections

Understanding proxy IP "freshness" principle

Many people think that buying a proxy IP can be used permanently, which is the same as buying yogurt without refrigeration - it may spoil the next day. The survival time of a proxy IP depends on three things:Operator Recycling Strategies,frequency of use,Flow Characteristics. For example, a home broadband IP may be forced to redial 24 hours a day, but a dedicated business line may be fixed on a monthly basis.

Take our ipipgo's dynamic residential proxy as an example, the system will automatically adjust the IP survival time according to the detection strength of the target website. A user doing e-commerce price comparison, using oursticky session modeThe secret of keeping the same IP for 12 hours is to send a "heartbeat request" every 5 minutes to simulate the rhythm of real people browsing.

Four key tips for real-world configurations

Here's a few real money for real money configuration options to share:

 Python example: intelligent retry mechanism
import requests
from requests.adapters import HTTPAdapter

session = requests.Session()
session.mount('http://', HTTPAdapter(max_retries=3))
session.mount('https://', HTTPAdapter(max_retries=3))

proxies = {
    'http': 'http://user:pass@proxy.ipipgo.io:3000',
    'https': 'http://user:pass@proxy.ipipgo.io:3000'
}

 Key parameter settings
response = session.get(
    'https://目标网站',
    timeout=(3.05, 10), 3 seconds to connect 10 seconds to read
    timeout=(3.05, 10), 3 seconds to connect 10 seconds to read
    headers={'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36'}
)

Focus on the blackboard:

1. Timeout settings should be greater than the proxy server response time (recommended total timeout ≥ 10 seconds)
2. Different authentication methods for different services (account passwords for dynamic IPs, whitelisting for static IP bindings)
3. Randomization of request intervals (don't make it look like a stopwatch)
4. 403 error immediately switch IP (do not deadlock)

ipipgo package selection guide

Frequently asked questions on demining

Q: Why do IPs fail when I use them?
A: Ninety percent is triggering the target site's wind control. It is recommended to turn on the ipipgo backgroundIntelligent switching modeThe system will automatically replace the IP before it is blocked.

Q: How can I tell if the proxy is really in effect?
A: Use this command to measure connectivity first:curl -x http://代理IP:端口 http://ip.ipipgo.comIf you can return the real proxy IP, it will work. Don't trust those free testing sites, they may have caches.

Long-term Maintenance Cold Knowledge

There is a friend who does social data and found that the probability of IP being blocked every Wednesday afternoon is particularly high. Later found that because the target site every Wednesday to update the wind control strategy, now he will take the initiative to replace the IP pool at noon on Wednesday, the survival rate increased by 60%. this tells us thatThe pace of business should follow the O&M cycles of the target platformsThe

Finally, don't believe in the so-called "permanent stable IP", the key is toKnow the Signs Before IP Failure. For example, a sudden increase in response time, a specific request returning a blank, all of these may indicate that the IP is about to fail. With ipipgo, there is real-time health monitoring in the background, and a 15-minute advance warning is enough time to switch.