Web Crawling Overview: Proxy Web Crawling Techniques Explained

First, what is called web crawling? Why do I have to use a proxy IP?

Let's start by talking about web crawling. To put it bluntly, it is automatically pulling data from the Internet, such as commodity prices, news and information. However, many sites are not happy to be frequent data capture, just like the neighborhood security guards staring at strange license plates, found abnormal access to the IP immediately blocked.

at this momentproxy IPThat's where it comes in handy. It's like changing your car every time you enter a neighborhood, so the security guards won't recognize you. Use the proxy IP pool provided by ipipgo to change the exit IP for each request, which is not easy to be blocked and can improve the efficiency of data acquisition.

import requests
proxies = {
  "http": "http://username:password@gateway.ipipgo.com:9020",
  "https": "http://username:password@gateway.ipipgo.com:9020"
}
response = requests.get("https://target-site.com", proxies=proxies)

Second, the proxy IP of the actual combat tricks

Many newbies are prone to make these few mistakes:

Here's the kicker.request header masquerading as. Some sites will detect User-Agent, use ipipgo's browser fingerprinting library with a proxy IP and the realism pulls right through:

headers = {
    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36..." ,
    "Accept-Language": "zh-CN,zh;q=0.9"
}

III. IPIPGO's Unique Secrets

There are a lot of proxy service providers on the market, but why do I recommend ipipgo? They have three great things to offer:

1. High percentage of residential IP: Harder to recognize than server room IPs
2. Failure automatic switching: Cutting new IPs in a second in case of a ban
3. pinpointing functionConvenient for those who need IPs in specific regions

Special mention of theirIntelligent Routing功能。比方说你要抓某宝数据，用他们的杭州机房节点，能压到50ms以内，比普通代理快两倍不止。

IV. Practical guide to avoiding pitfalls

Name a few real life cases:

• 某电商客户没设置请求间隔，1分钟被ban了20个IP，改用ipipgo的阶梯式方案后，成功率提到98%
• Crawler program is always blocked by CAPTCHA, with ipipgo's IP rotation + header information camouflage, the CAPTCHA trigger rate dropped by 70%!

Focused Reminder:Don't use free proxies for cheap!! Data leaks and unstable connections are big problems. A previous customer used a wild proxy, and as a result, the crawler code was reverse injected and the entire database was terminated.

V. Frequently Asked Questions QA

Q: What can I do about slow proxy IPs?
A: Pick ipipgo's exclusive high-speed channel and remember to use their smart routing feature to automatically match the optimal node.

Q: What should I do if I encounter Cloudflare protection?
A: Use ipipgo's real person operating IP + browser fingerprinting simulation, which is pro-tested to bypass most 5-second shield detections.

Q: What if I need a long term stable IP?
A: ipipgo provides fixed duration IP rental service with up to 30 days retention, suitable for scenarios that require whitelisting.

One final note: Web crawling is all about"A combination of fast and slow.". Use high-quality proxies when it's time to grab the speed, and do a good job of camouflaging when it's time to stabilize. With the right tools + reasonable strategy, the efficiency of data acquisition can go up and up.