First, high concurrency crawler why must use proxy IP?
When doing large-scale data collection, dozens of requests per second from a single IP will trigger the website protection mechanism. Real case: an e-commerce platform used a self-built server to capture the price of competing products, and 37 IP addresses were blocked in less than 2 hours. At this time, it is necessary to useDistributed Proxy IP Poolto spread the request pressure.
With ipipgo's residential proxy service, requests can be assigned to end devices in different geographic locations. For example, the residential IPs of Texas, Osaka, Japan and Berlin, Germany are called to initiate requests at the same time, and each IP maintains the normal human operation frequency (it is recommended to control it at 3-5 times/minute), which not only ensures the collection efficiency but also reduces the risk of blocking.
Second, hand to build a distributed IP pool
The core architecture is organized in three layers:
level | functionality | Realization of the program |
---|---|---|
movement control center | IP Assignment/Failover | Storing Available IP Queues with Redis |
verification module | quality control | Timed IP connectivity check |
execution node | Actual initiation of the request | Multiple servers + ipipgo API |
Focusing on the implementation of the validation module: it is recommended to setTriple checking mechanism. First use the HEAD method to test if the IP is alive, then visit a specific verification page to test if the real geographic location is returned, and finally count the historical success rate of that IP. When an IP fails 3 times in a row, it is automatically returned to ipipgo's IP pool to wait for reactivation.
III. Practical skills for dynamic scheduling
Simply changing IPs is not enough when encountering websites with strict anti-climbing requirements. We have tested and found that it works better with the following strategies:
1. Traffic camouflage packages: Obtain terminal environment parameters of different operating systems and browser versions through ipipgo, and randomly combine User-Agents in the request header.
2. Request for rhythmic control: Do not fix the time interval, it is recommended to set a random waiting time between 1-3 minutes to simulate manual operation characteristics
3. geographic rotation strategyFor scenarios that require location data, you can set up a city-level IP switch every 50 requests. ipipgo supports precise city selection, such as Chicago then Houston then Dallas
IV. Special Scenario Solutions
Case: a social platform needs to maintain a logged-in state to collect data
Solution: Use ipipgo'sLong-lasting static residential IPIn addition, it works with the browser fingerprinting management technology. Bind a fixed IP for each session and set a reasonable cookie refresh cycle (no more than 6 hours is recommended), so as to maintain the account login status and avoid the authentication mechanism triggered by frequent IP changes.
V. QA Frequently Asked Questions
Q: Why do I still get blocked even if I use a proxy IP?
A: Check three places: 1. whether the frequency of a single IP request is too high 2. whether the request header characteristics are the same 3. whether it triggers the mouse track detection. It is recommended to use ipipgo'sReal Equipment Parameter Libraryto refine the request characteristics
Q: How to judge the quality of proxy IP?
A: the key to look at three indicators: 1. response time fluctuation value (recommended less than 20%) 2. success rate (recommended >98%) 3. geographic location accuracy. ipipgo provides real-time quality monitoring panel, you can directly view the detailed data of each IP
Q: What should I do if I encounter a CAPTCHA?
A: Do not blindly retry, it is recommended that: 1. Immediately suspend the use of the IP 2. Switch between different geographic regions of the IP 3. Increase the mouse movement track simulation. ipipgo's IP pool has theAutomatic cooling mechanismThe IP that triggers authentication will be temporarily quarantined for 12 hours.
VI. Why choose ipipgo?
The measured data show that after using ipipgo's distributed IP program, a data company's collection efficiency increased by 17 times, and the blocking rate dropped from 32% to 0.7%. core advantage:
- Real Life Housing IP: from real home broadband, not easily recognized as a proxy
- Full coverage of agreements: Support HTTP/HTTPS/SOCKS5 multiple access methods
- precise positioningGlobal 240+ countries and regions to choose from, city-level positioning error <2 kilometers
- Intelligent Routing: Automatically selects the optimal network path to reduce latency
It is recommended to first go through ipipgo'sreal time debugging interfaceTest IP performance in different scenarios and then design scheduling strategies based on specific business needs. Remember: a good proxy architecture is not about stacking the number of IPs, but about maximizing the value of each IP.