American group store data collection: Python crawler breakthrough anti-crawl proxy IP practical skills

The daily life of being IP blocked by the United States: the bitter tears of the crawler boy

Last week there is a restaurant data analysis of the old brother to find me complained, said that the use of Python scripts to climb the United States Mission store information, at first you can run dozens of pages of data, after two days directly IP into the blacklist. This scene is like queuing up at the amusement park, just playing two items were dragged out by the security guards--I can't even touch the door.The

Demystifying the "three axes" of the American group against pickpocketing

Meituan's anti-crawl system is like plainclothes security guards in a shopping mall, specializing in catching suspicious-looking customers. They focus on three main characteristics:
1. High Frequency Visit Cadence(Normal people don't click on pages 10 times a second.)
2. IP track anomalies(looking at hot pot restaurants in Beijing in the morning and running to Sanya in the afternoon looking for seafood)
3. Request for fingerprints to be identical(All visits carry the same browser fingerprint)

Guerrilla Warfare Play: The Art of IP Rotation

Here's a recommendation for ipipgoDynamic Residential Agents, it's like putting a cloak of invisibility on a crawler. Their IP pool has 90 million + real home network addresses, and they can get a new vest for every request. An example configuration:

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

Be careful to matchStochastic dormancy mechanism, set the request interval like this:

The wonders of geolocation

MMT will show different stores based on the user's geographic location. Use ipipgo'sCity-level location agentsFor example, if you want to collect takeout data from Shanghai, you should choose the local residential IP of Shanghai, so as to get the most complete and accurate list of stores.

Hidden Tips for Protocol Selection

The test found that the American tour of socks5 protocol detection is weak. ipipgo support full protocol access, here recommended to use theirsocks5 residential proxy, with the requests library set up this way:

proxies = {
    'http': 'socks5://user:pass@gateway.ipipgo.com:3000',
    'https': 'socks5://user:pass@gateway.ipipgo.com:3000'
}

Anti-blocking practical QA

Q: What should I do if I use a proxy and still get blocked?
A: Check three things: 1) whether automatic IP rotation is enabled 2) whether the request header is with browser fingerprint 3) whether CAPTCHA is triggered. It is recommended to turn on ipipgoAutomatic Invalid IP Rejectionfunctionality

Q: How do I handle the need to collect data from multiple cities?
A: Using ipipgo'sMulti-geographic concurrent acquisitionSolution, each city is assigned an independent IP segment to avoid triggering alarms by jumping across zones

Q: How do I break the CAPTCHA when I encounter it?
A: Immediately suspend access to the IP, ipipgo's proxy pool will automatically mark the problem node. It is recommended to cooperate with the coding platform to do temporary processing

Final life-saving advice

Don't put your eggs in one basket!Mixing dynamic and static IPsI'm going to use ipipgo for important data collection.Long-lasting static residential IPThe IP address of the company is the same as the IP address of the company's main office, and the IP address of the company's main office is the same as the IP address of the company's main office.

Recently helped a friend with this set of methods for a stable run for half a month, the average daily collection of 50,000 + store data did not turn over. The key is to operate like a real person shopping the Mission-Take your time, stop occasionally, change places often. Use ipipgo's global pool of IP resources, and you'll find that the anti-climbing mechanism is like the security door of a supermarket; as long as you shop normally, the alarm will never go off.