Macy's Price Tracking Alert System Development

Why do I have to use a proxy IP for the Macy's price monitoring system?

Have done e-commerce data crawl know, Macy's anti-climbing mechanism than the security check of the department store is more strict. Last week, an old man used his own broadband to grab data, just checked 20 product pages, the IP address was blacklisted. This is the time to rely onProxy IP to be a stand-in actor, especially players like ipipgo who can change their vests at any time.

Let's take a real example: if you want to monitor the real-time prices of 100 women's clothing items, and if you use only one IP address to check, the Macy's server will block you as a scalper. But if you use ipipgo's rotating IP pool, each time you request a "new face", the system will think it is a different user browsing.Survival rate is more than eight times higher.The

Three tips to teach you to choose the right proxy IP service provider

A bunch of agent service providers on the market, how to pick so as not to step on the pit? The key to look at these three indicators:

In particular, be warned that some service providers will putData Center IPPosing as a residential IP, this disguise wouldn't last three rounds under the fiery eyes of Macy's. ipipgo's residential proxies are actual home networks that don't trigger wind control when grabbing price data.

Hands-on construction of monitoring system

Here's a grounded solution that works with Python + proxy IP:

1. first go to the ipipgo website to open aDynamic Residential Agent PackageIf you're a new user, you'll get a 5G trial pack.

2. When writing a crawler script, focus on setting these two parameters:

proxies = {
    "http": "http://用户名:密码@gateway.ipipgo.net:端口",
    "https": "http://用户名:密码@gateway.ipipgo.net:端口"
}

3. SettingsRandomized visit intervalsIt is recommended to fluctuate between 5-15 seconds, do not whole too regular visit rhythm

4. Don't fight with CAPTCHA, use ipipgo'sIP cooling functionIf you have to suspend the IP that triggered the CAPTCHA for 30 minutes, you can use it again.

Frequently Asked Questions First Aid Kit

Q: What is the appropriate monitoring frequency?
A: General merchandise check 1 time in 2 hours, promotional merchandise check 1 time in 15 minutes, remember to cooperate with ipipgo's intelligent scheduling function

Q: What should I do if I can't catch all the data?
A: ninety percent is IP quality problems, change to ipipgo'sExclusive IP packageDon't use shared IP pools.

Q: Too many false alarms about price fluctuations?
A: add a logical judgment in the code: 3 consecutive crawling price is the same before counting, to avoid the site temporary loading errors

Why do you recommend ipipgo?

I've been using his service for over six months and the best smellingIP recovery mechanism. For example, if a certain IP has just grabbed the price of cosmetics, the system will automatically arrange for it to check the home appliance category next time, so that it is not easy to be recognized by association. Compared with the operation of other homes that simply change IPs, this kind ofBehavioral pattern camouflageIt's the real thing.

recently updatedPrice Fluctuation Early Warning APIIt is also quite practical, set a good threshold, when Macy's a commodity price reduction of more than 10% will be automatically pushed to the nail, than staring at the background every day to save a lot of worry. To say that the shortcomings of it, is that customer service is sometimes slow to reply, but the technical documents are written in enough detail to solve the problem.