Data collection methods for qualitative research: a proxy collection program for research data

Engage in data collection must know the proxy IP play

The biggest headache of doing qualitative research is data collection, especially when a large number of samples are needed. Crawler partners should have encountered the situation of IP blocked, right? The hard-written script is blacked out by the target website when it is running.Proxy IPs are your saving grace. But there are a lot of service providers on the market, so here's how to use the right one.

Why Dynamic Residential IPs are Preferred

A lot of newbies buy the cheapest server room IPs when they come in, and the result is that the collection is blocked in 10 minutes. Here's alesson learned through blood and tearsTo do long-term data collection, you must use residential IP. ipipgo's dynamic residential IP pool is updated with 200,000+ real home network addresses every day, and it has been tested that continuous collection for 8 hours will not trigger the blocking mechanism.

 Python Sample Code
import requests
proxies = {
    "http": "http://user:pass@gateway.ipipgo.com:9020",
    "https": "http://user:pass@gateway.ipipgo.com:9020"
}
response = requests.get("destination URL", proxies=proxies, timeout=30)

Three Iron Laws of Acquisition Solution Design

1. Rotation frequency should be randomized: Don't be stupid and set a fixed 5 minute IP change, use ipipgo's API to dynamically get surviving IPs and set random intervals like this:

import random
time.sleep(random.randint(45,120)) Random wait 45-120 seconds

2. The request header should be personalized.Remember to synchronize the User-Agent every time you change the IP, ipipgo's SDK comes with a UA library that automatically generates real device information.

3. Failure to Retry Be Smart: Don't be in a hurry to change the IP when you encounter a 403 error, and reduce the collection frequency first. It is recommended to use the exponential retreat algorithm, 3 consecutive failures and then change the IP

Configuration options that have been tested to work

This is what our team has been running for 3 months to test outgold net for catching rabbits(Note that it is the dialect in which the configuration is written):

Frequently Asked Questions QA

Q: What should I do if I am always prompted for the verification code halfway through the collection?
A: Eighty percent of the IP quality is not good, change it to ipipgoHigh Stash Residential IPRemember to turn on automatic JS rendering mode

Q: How do I break it when I need to collect data from different regions?
A: Setting in ipipgo backendgeolocation modelFor example, if you want Shanghai data, select the "city=shanghai" parameter.

Q: How do I choose a package with a limited budget?
A: Buy them firstpay-per-use packageThe 1GB of traffic is only 80 cents, test stability before switching to a monthly package

Tell the truth.

One last reminder, don't trust service providers that claim unlimited traffic. We have suffered losses and later switched to ipipgo'sEnterprise Customized EditionOnly to be considered stable. Their technical customer service is really 7 × 24 hours online, the last three o'clock in the middle of the night to collect the program collapsed, actually seconds back to the work order, this point is really convincing.

Remember, a good proxy IP service is like air, usually do not feel the existence of, but critical moments without the finished. Engaged in research data collection, really need to find a reliable backer, save time enough to send two papers.