E-commerce Product Crawler: Price Monitoring System

Why do e-commerce price monitors have to use proxy IPs?

Bosses who engage in e-commerce understand that peer-to-peer pricing is more intimate than pro-father - you have to keep an eye on it every day. But directly take their own servers to climb data, as conspicuous as wearing a big red cotton jacket to be an undercover agent. Two days ago, a mother and baby products customers, with their own fixed IP to climb a platform, the results of three hours to be blocked, even with the main account have suffered.

This is the time to useProxy IP for guerrilla warfare. It is like changing different clothes every time you go out, so that the platform can not recognize who you are. For example, with ipipgo's dynamic residential IP, every time you request a different exit, the platform will see a "passerby" browsing commodities, and will not be suspicious at all.

Have you stepped in the three main potholes of choosing a proxy IP?

There are so many proxy IP service providers on the market that it's like a food market, but none of the 90% are suitable for e-commerce crawlers:

When we did stress testing for a client, we found that using ipipgo'sExclusive use of High Stash Residential IP, the survival cycle is 5-8 times longer than normal IP. In particular, their IP pool is updated about 20% every day, which just matches the frequency of daily changes in e-commerce prices.

Practical: with ipipgo build price monitoring system

Here is a Python example given, note how to switch IPs intelligently:

import requests
from ipipgo import IPPool import own SDK

ip_pool = IPPool(api_key="your key")

def get_price(url).
    for _ in range(3):
        proxy = ip_pool.get_proxy(type='https')
        try: resp = requests.get(url)
            resp = requests.get(url, proxies={"https")
                proxies={"https": proxy},
                proxies={"https": proxy}, timeout=8,
                headers={"User-Agent": "Mozilla/5.0 (normal browser UA)"}
            )
            return parse_price(resp.text)
        except.
            ip_pool.report_failure(proxy) flagging failed IPs
    return None

Here comes the key point:Failure Retry + Auto-Recycling MechanismIt can make the success rate increase more than 60%. Some customers at first can not afford to buy quality IP, the results of the calculation because of the lack of data caused by the lack of decision-making, the loss is more than ten times higher than the proxy fee.

QA for high-frequency questions

Q: Why am I still blocked even though I use a proxy?
A: 80% of the behavioral characteristics are exposed. For example, the request interval is too regular, or not with the correct cookies. we suggest adding random wait (0.5-3 seconds) in the code to simulate the rhythm of real people browsing.

Q: How much IP volume is needed in a day?
A: Estimated by this formula: number of target stores × number of sku per store ÷ (24×60/collection interval). For example, if you monitor 100 stores with 500 items each and collect them every 10 minutes, you will need about 72,000 IPs per day. it is more cost-effective to use ipipgo's per-volume package.

Q: What should I do if I encounter a CAPTCHA?
A: A good agent can reduce 90% CAPTCHA trigger. Really encountered recommended two programs: ① set automatic retry ② access to the coding platform. Never hard just CAPTCHA, easy to trigger a more stringent wind control.

Don't waste ipipgo's hidden features

Many of our customers are unaware that we offerIP Quality Monitoring Panel, can be seen in real time:
- Success rate of IPs in each region
- Response Speed Ranking
- Abnormal IP automatic replacement ratio

Especially for cross-border e-commerce, you can use this function to avoid the pit of network instability in certain regions. Last week, a customer found that the U.S. East Coast IP access to a platform is particularly fast, adjust the regional strategy after the collection of efficiency directly doubled.

Final rant: don't buy crap IPs on the cheap, the little money you save won't be enough to buy a programmer a blood pressure pill. Find a program like ipipgo that canAdjust the package at any timeThe way to really save money is for the service provider to increase the volume in the peak season and decrease the volume in the off-season.