Crawling Tools: Recommended Data Crawling Tools

First, data capture the most headache pit you stepped on it?

Engaged in data capture of the old iron must have encountered this situation: just run half an hour program, the target site directly to your IP black. What's even more annoying is that sometimes the speed of the net is so fast, but the data can't be captured. At this time if there is no pointanti-blocking masterpiece, minutes to stop work.

Let's take a real example: last year there was a team doing a price comparison website, using a common crawler to catch e-commerce data, and as a result, the whole office network was blocked that afternoon. Later they usedProxy IP Rotation, in conjunction with ipipgo's dynamic residential IP, is now steadily grabbing millions of data per day.

Second, these capture tool pro-test good use

Let's start with a few.zero-code playerIt all works:

1. octopus collector - suitable for table data
2. Trainwreck - old collection tool
3. WebScraper - Browser Plugin Magic

Older programmer drivers recommend these more:

import requests
from itertools import cycle

proxies = ipipgo.get_proxy_pool() use ipipgo's API to get the IP pool here
proxy_pool = cycle(proxies)

for page in range(1,100): current_proxy = next(proxy)
    current_proxy = next(proxy_pool)
    try.
        res = requests.get(url, proxies={"http": current_proxy})
         Data processing logic...
    except: print(f "http": current_proxy})
        print(f"{current_proxy} failed, automatically switching to next")

Third, proxy IP in the end how to match the car does not turn over?

Here's the point! Many people fall head over heels in proxy IP configuration, remember these three points:

Actual test of valid configuration templates (take ipipgo's short-acting proxy as an example):

proxies = {
    'http': 'http://你的账号:密码@gateway.ipipgo.com:9020',
    'https': 'http://你的账号:密码@gateway.ipipgo.com:9020'
}

Fourth, why do you recommend ipipgo?

There are many proxy IP service providers on the market, but those who have used them know that ipipgo has severalkiller::

• Real residential IPs, target sites can't tell if it's a real person or a machine
• Exclusively developedIP warm-up technologyNew IPs automatically inherit historical usage records
• Positioning in 200+ cities across the country, when you need geographical data, it's simply open.

Their package design is also a real thief:

Entry version: 19 yuan / day Suitable for small-scale crawling
Enterprise Edition: Support API real-time IP switching
Customized version: exclusive IP pool + exclusive technical support

V. Frequently Asked Questions QA

Q: Can't I use the free agent?
A: Nine out of ten free IPs fail, and the remaining one may steal your data. Professional things are still left to professional service providers like ipipgo.

Q: Do I need to maintain my own IP pool?
A: With ipipgo it's not necessary at all, their IP pool is automatically updated every 5 minutes and they can also filter specific carriers on demand.

Q: What should I do if I encounter a CAPTCHA?
A: ipipgo IP quality is high, with the request frequency control, can significantly reduce the probability of verification code. Really encountered recommended on the coding platform.

Finally, a piece of cold knowledge: when grabbing data with a proxy IP, remember to add the following to the headersAccept-Languageparameter, which many sites rely on to determine if it's a bot. Getting the details right is the only way to glean the data wool steadily.