HTTP crawler proxy: HTTP protocol crawler dedicated proxy IP

What exactly is the use of HTTP crawler proxies?

Engaged in data collection friends understand that the site anti-climbing mechanism with the security checkpoints like, a little inattention will be stopped outside. At this timeproxy IPIt's like wearing a cloak of invisibility to the crawler, especially the proxy service specialized in HTTP protocol, which allows your crawler program to flexibly switch between different IP addresses. For example, with ipipgo's rotating proxy pool, each request automatically change IP, the web server sees a new face, the probability of blocking directly cut in half.

Three Tips to Pick the Right HTTP Crawler Agent

The market is full of agency service providers, remember these three hard indicators are accurate:

Hands-on configuration of ipipgo proxy

Take the Python crawler as an example of a five-step process:

1. Open an account on the ipipgo website.pay per volumePackages, 5G traffic trial for new users
2. Generate a proprietary API link in the console, remember to select theHTTP Protocol Dedicated Channel
3. Add the proxy middleware in the code, focusing on setting the timeout retry parameter.

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

4. Remember to add an exception capture, encountered 403 automatic IP switching
5. Go to the background to see the real-time usage statistics, the traffic will run out of SMS alerts

A guide to avoiding the pitfalls (a must-see for beginners)

- Don't try to buy a shared IP pool for cheap, nine times out of ten, it's a waste of IP for 10,000 people to ride.
- Don't be a hard ass when it comes to CAPTCHA, ipipgo.Intelligent Dispatch SystemAutomatically cuts low-frequency access IPs
- 2am to 10am is the golden period of collection, when the IP availability is highest
- Remember to open important projectsIP whitelistingFunctions to prevent mission-critical dropouts

QA First Aid Kit

Q: What should I do if my proxy IP is not working?
A: In the backend of ipipgo putAutomatic change intervalTuned to 15-30 minutes, the system will automatically eliminate the invalid IP, remember to turn on the spare IP pool function.

Q: What should I do if the acquisition speed is slowed down?
A：检查是不是用了免费代理，正规服务商像ipipgo的BGP线路，能控制在300ms内。还有个诀窍——把并发数调到50-100之间，别开太高触发反爬。

Q: How to test proxy IP quality?
A: ipipgo users directly to the background pointOn-line DetectionIf you want to see the success rate of each node, you can enter the target URL and see the success rate of each node. Third-party tools recommend ProxyBench, but you have to configure your own detection rules.

In the end, choose the right proxy service provider can save a large part of the heart. Like ipipgo seven years old store, specifically optimized for HTTP crawlers, new users register also sends24-hour VIP experienceIf you have any technical problems, you can go to their customer service directly, and the reply speed is more than twice as fast as that of your peers. The next time you encounter anti-climbing IP blocking, do not be hard to change the UA, change a reliable proxy IP try?