Crawler Agent

How can Python crawlers avoid being blocked? Proxy Pool Building Core Ideas When your crawler visits the target website continuously, the server will identify abnormal traffic through request frequency, IP address and other characteristics. Many newbies will be puzzled: obviously set a random request header, why is it still blocked? In fact, the core problem lies in ...

Why do educational websites block crawlers? The same IP high-frequency access blocking mechanism is common in domestic university libraries and academic platforms. When an IP address downloads a large number of papers and retrieves documents in a short period of time, the system will automatically determine that it is a machine operation and block the IP. this not only affects the efficiency of academic research, but also...

Practical Guide: Using Residential IP Pools to Break the Bottleneck of Million-Class Crawler Throughput When crawler business needs to handle millions of requests per day, traditional single-server deployments will encounter fatal bottlenecks. Measurement data shows that even if a single server is configured with 100 threads, the average daily request limit is difficult to break through 300,000 times. At this point must be taken ...

Core Logic of Scrapy Middleware Proxy Configuration In a crawler project, the proxy IP is equivalent to putting on a "cloak of invisibility" for the program.The Scrapy framework itself provides a middleware mechanism, and we just need to create a new proxy middleware class in the middlewares.py file. Here is a key point: do not directly ...

First, why is it easy to be recognized with proxy IP for crawler? Many friends who do data collection have had this experience: obviously using a proxy IP, the target site can still identify the crawler behavior. This is because the regular proxy IP is easy to be labeled by the website as the IP of the server room, and ordinary users simply will not use this type of IP to visit...

How Distributed Crawler Breaks the Efficiency Bottleneck through IP Pooling? When the crawler task needs to process massive data, the local single node IP will soon trigger the anti-crawler mechanism. The traditional solution is to buy multiple proxy IPs to rotate, but single-point management is prone to IP blocking, task interruption and other problems. At this point it is necessary to ...

First, why is dynamic IP a necessary weapon for anti-crawlers? In data crawling scenarios, the most common anti-crawler means for websites is to identify abnormal access behavior of fixed IPs. When the same IP address sends a large number of requests in a short period of time, the server will immediately trigger the blocking mechanism. At this time, if you use ipipgo's...

How does real user behavior avoid platform risk control? When social media accounts frequently log in abnormally, the platform will judge the risk by three dimensions: IP address, device fingerprint, and login time. The operation group of an e-commerce company had a shared office network that led to 30 accounts being blocked in bulk - a typical IP association...