BeautifulSoup Library: Proxy IP to Improve Web Parsing Efficiency

What happens when a crawler hits an anti-crawler mechanism?

Recently, several friends who do data collection have complained to me that they are always blocked when using BeautifulSoup to parse web pages, which is something I am familiar with! Last year, when I did the e-commerce price comparison tool, I encountered, at that time for three consecutive days by the target site to pull the black, anxious me straight pulling hair.

Then I found a trick--Proxy IP RotationIt's like when you go to the supermarket and try out the food, you always use the same face. It's like when you go to the grocery store to try out food, and you always rub your face in the same way, the clerk is sure to blow you off. If you change different clothes and wear a wig every time, you can have a few more rounds. Proxy IP is this disguise, let the website think that each visit is a new user.

Hands-on with BeautifulSoup's vest

Here is a real case: a travel website only allows 30 visits per hour. With the following code, with ipipgo's proxy service, successfully realize 24/7 data collection.

import requests
from bs4 import BeautifulSoup

def get_page(url):
    proxies = {
        'http': 'http://username:password@gateway.ipipgo.com:9020',
        'https': 'http://username:password@gateway.ipipgo.com:9020'
    }
    try.
        response = requests.get(url, proxies=proxies, timeout=10)
        soup = BeautifulSoup(response.text, 'lxml')
         Remember to replace the parsing logic here with your own
        return soup.find_all('div', class_='price-item')
    except Exception as e.
        print(f "Fetch error: {str(e)}")
        return None

Look at the proxies parameter there.username and password should be replaced with your own key registered with ipipgo.The first thing you need to do is to get a good deal on the IP address of the proxy channel. Their proxy channel supports automatic IP replacement, without having to manually switch yourself, which is particularly troublesome.

Crawlers get off work early with a good proxy IP.

Proxy services on the market are uneven, I have compared more than a dozen service providers, and finally locked ipipgo mainly for these reasons:

A special shout-out to theirIntelligent Routing FunctionThe system can automatically match the fastest server node. Once I ran five crawler scripts at the same time, the system load is actually lower than before with other proxies 40%.

Common Pitfalls for Newbies

QA 1: I used a proxy IP and still got blocked?
The anonymity level may not be enough, choose a high proxy in order to hide the real IP. ipipgo's proxy pool are enterprise-grade high proxy IP, pro-test effective.

QA 2: Does proxy IP affect the resolution speed?
A good proxy should speed up! If it gets slower, check the proxy server geographic location. For example, if you're crawling a domestic website, the Hangzhou node of ipipgo is more than 10 times faster than the US node.

QA 3: Do I need to maintain my own IP pool?
The first thing you need to do is to get your hands dirty! Maintaining the IP pool by yourself is purely looking for a crime. ipipgo updates 200,000+ fresh IPs every day, and once I collected 18 hours continuously, the system automatically switched more than 200 IPs, and the whole process didn't report any errors.

And finally.anti-blocking secretThe three-pronged axe of controlling the frequency of visits + random User-Agent + high-quality proxy IP, 90%'s anti-climbing mechanism can be broken. Recently, ipipgo is doing 618 activities, new users to send 10G flow, just to practice.