First, dynamic IP pool in the end what is the use? Let's play like this to be strong
Brothers who have engaged in data capture know that the IP is blocked like eating hot pot without chili - all the body is not strong. Traditional fixed IP is easy to be targeted by the site's wind control, this time the second cut dynamic IP pool is like a crawler installed a Transformer, each request can be changed to a new vest. To put it bluntly, it is to use real residential IP to take turns on the field, so that the target website thinks that it is a different user in the operation.
Take our ipipgo's dynamic residential agent, more than 90 million real home IPs to pick at random. For example, if you want to collect the price of an e-commerce platform, you can do it with this program:
import requests
from random import choice
Latest IP pool from ipipgo
ip_pool = ['104.28.94.12:8800','201.19.83.41:8800','95.216.203.88:8800']
def crawler(url).
headers = {'User-Agent':'Mozilla/5.0'}
proxy = {'http': f'http://user:pass@{choice(ip_pool)}'}
try.
resp = requests.get(url, headers=headers, proxies=proxy, timeout=5)
return resp.text
except.
print("This IP doesn't work. Get another one!")
return crawler(url) auto-retry
Second, hand to teach you to build dynamic IP pool (focus on step 3)
The key steps are just three tricks:
1. Choose the right type of agent:You must use a dynamic residential IP (not a server room IP), and dynamic packages like ipipgo's support on-demand switching. Their IPs have a minimum life cycle of 1 minute, which is perfect for second switching.
2. IP pool maintenance tips:
- Randomly pick IPs before each request (don't use them in order)
- Immediately hack the IP when it encounters the response code 403
- Automatic replenishment of new IPs from 2-6 a.m. (this time of the day has a lot of IP resources)
3. The core code is written like this:(Focus on exception handling)
Practical IP Pool Management
class IPManager.
def __init__(self).
self.good_ips = [] valid IP pools
self.bad_ips = set() Failed IP pools
def refresh_ips(self):
"""Get new IPs from the ipipgo API""""
api_url = "https://api.ipipgo.com/v1/get_ips?type=dynamic"
new_ips = requests.get(api_url).json()['data']
self.good_ips = [ip for ip in new_ips if ip not in self.bad_ips]
def get_ip(self).
if not self.good_ips: self.refresh_ips().
self.refresh_ips()
return choice(self.good_ips)
III. Guide to avoiding potholes (a must for novices)
Recently discovered while helping a customer debuggingtypical problem::
| problematic phenomenon | method settle an issue |
|---|---|
| IP switched and still blocked | Check request fingerprints (User-Agent, Cookie to be replaced simultaneously) |
| Slowdown of internet speed after switching | No congestion with ipipgo's enterprise packages with exclusive bandwidth |
| Difficulty in obtaining IP in certain countries | Add the country_code parameter to the API request to specify the region. |
IV. Frequently Asked Questions QA
Q: How do I choose between dynamic and static packages?
A: need to change the IP frequently (such as crawling) with dynamic; long-term maintenance of the session (such as hang-ups) with static
Q: How fast is ipipgo's IP switching?
A: The measured enterprise-level package can do 0.8 seconds switching, faster than the industry average of 40%. they have an intelligent scheduling system, in advance of the spare IP cache to the local
Q: How do you ensure anonymity?
A: Remember three things: 1) Use a residential IP 2) Change UA for each request 3) Enable ipipgo's automatic TLS encryption feature
V. Speak the truth
Having used seven or eight agency services, what amazes me most about ipipgo is theirIP Quality Monitoring SystemI'm not sure if I'm going to be able to do that. Once at three in the morning debugging program, suddenly found that the U.S. IP pool response slowed down. I just wanted to call and scold someone, and found that the background automatically switched to the Canadian node - it turned out that their AI system monitors the health status of each IP in real time, much faster than manual troubleshooting.
And finally.Mako's advice.: If it is a small personal project, with the standard version of the dynamic package is enough; company-level business directly on the enterprise version, do not save that little money - stable IP pool can make you less 50% hair!
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