
Why do traditional crawlers always flop?
Brothers engaged in data collection understand that IP is blocked as common as choking on food. Ordinary crawlers with their own IP hard just, the site anti-climbing system minutes to you blacklisted. For example, an e-commerce platform triggers verification after 20 consecutive visits, and the use of real IP is equivalent to cutting off your own life.
Don't try any of these wild schemes.
What is rumored on the Internet to change the request header, reduce the frequency of access are the symptoms but not the root cause. Recently a customer with a random UA disguise, the results of three days to be recognized, the account all destroyed. More pitiful is to use a free proxy, 8 out of 10 is a waste of IP, the remaining 2 may steal your data.
Demonstration of error: inefficient rotation of UA
headers_list = [
{'User-Agent': 'Mozilla/5.0 (Windows NT 10.0)'},
{'User-Agent': 'Chrome/98.0.4758.102'}
]
See here for reliable programs
Option 1: Multi-platform IP mixing
Split the collection task into different proxy pools, such as using residential IPs to access core data and data center IPs for secondary validation. Like ipipgo'sDynamic + Static Combo Package, 35 bucks for basic business.
Option 2: Dynamic IP Pool
Automatic IP changes are the way to go. Look at this sample configuration:
import requests
from ipipgo import get_proxy hypothetical SDK method
def smart_crawler(url).
proxy = get_proxy(type='dynamic') get new IP automatically
return requests.get(url, proxies={'https': proxy})
Real-world comparison table
| Type of program | success rate | Cost/month | maintenance difficulty |
|---|---|---|---|
| Self-built agent pool | ≤40% | 500+ | Requires specialized maintenance |
| ipipgo dynamic package | 92% | 7.67 Yuan/GB | API automatic replacement |
| Static Residential IP | 85% | 35RMB/IP | Need to be changed manually at regular intervals |
QA First Aid Kit
Q: Will the proxy IP suddenly lose its connection?
A: Pick a provider with auto-detection, such as ipipgo's Enterprise package, which pings available nodes before each request.
Q: How to break latency in cross-country acquisition?
A: Use theircross-border rail lineThe measured US node latency can be squeezed to within 200ms.
Guide to avoiding the pit
Don't believe those who say "permanent free" proxy service, last time there is a brother figure cheap, the result of the collection of data mixed with 30% fake data. It is recommended that newcomers fromDynamic Residential StandardGetting started, $7+ for 1G of traffic is enough for trial and error.
When it comes to choosing an agent it's like finding a date toStable + adaptable. Something like ipipgo that can be customized 1v1 is especially good for projects with fluctuating business. The one they have.SERP APIIt directly eliminates the need for parsing, which is kind of a gospel for lazy people.

