Data parsing: structured data processing methods

When crawlers meet counter-crawlers, how can proxy IPs help you keep your job?

Do data collection friends understand, hard work to write the crawler suddenly blocked by the site IP, the feeling is like a cooked duck flew. This time you need a proxy IP to save the day. Do not think that just find a free proxy can be fixed, here the doorway can be more.

For example, the price monitoring script of an e-commerce platform was 403 after less than 10 consecutive requests. after replacing it with ipipgo's Dynamic Residential Proxy.Keep the request interval at 2 seconds and switch to a different city IP each time, which ran for three days in a row without triggering wind control. This is the right way to open the proxy IP in structured data processing.

Three Practical Tips for Proxy IPs

1. IP pools have to be like chameleonsInstead of repeated requests from a single geographic IP, ipipgo's global node library automatically matches the location of the web server.
2. Be smart about session management: a collection task is split into multiple subtasks, each with a separate IP (e.g. book collection by category)
3. Be agile in exception handlingDon't die when you encounter CAPTCHA, switch IPs immediately and try again!

 Python Example: Polling with the ipipgo Proxy
import requests
from itertools import cycle

proxy_list = [
    'http://user:pass@us1.ipipgo.com:8000',
    'http://user:pass@jp2.ipipgo.com:8000'
]
proxy_pool = cycle(proxy_list)

for page in range(1, 101): proxy = next(proxy_pool)
    proxy = next(proxy_pool)
    try: resp = requests.get(url, proxies={'http')
        resp = requests.get(url, proxies={'http': proxy}, timeout=10)
         Processing data logic...
    except: print(f "IP {proxy}")
        print(f "IP {proxy} failed, automatically switch to next")

Don't step on these potholes.

Last week, a customer feedback, after using ipipgo's intelligent routing function, the data collection success rate soared from 47% to 92%. the secret lies in theirIP type automatic matching systemIt can automatically select the optimal proxy type according to the characteristics of the target website.

Frequently Asked Questions First Aid Kit

Q: What should I do if my proxy IP is slow?
A: Check if it is a high stash of agents, it is recommended to use ipipgo's exclusive bandwidth package, the actual download speed can be up to 3MB/s!

Q: How can I tell if a proxy is in effect?
A: Visit http://ip.ipipgo.com/check to view the current export IP, remember to clear your browser cache first!

Q: What should I do if the API returns garbled data?
A: It's probably an encoding problem, add 'Accept-Encoding': 'gzip, deflate' in the request header.

Choose an agent by looking at these hard indicators

Recently tested five service providers in the market, ipipgo inIP purityThe performance on it is outstanding. They serve up to 3 clients per IP, unlike some platforms that sell 1 IP for dozens of uses. Look at this set of comparison data:

• Average time available: ipipgo 4.7 hours vs. industry average 1.2 hours
• Request Success Rate: ipipgo 98.3% vs 89% for others
• (Customer service response time: 2 hours)

Finally, a cold knowledge: many sites will actually record the mouse track, simply change the IP is not enough. With ipipgo'sBrowser Fingerprint Camouflageto do a real stealthy capture. Next time you encounter a difficult website, remember to turn on this hidden switch.