Shulou(Shulou.com)06/03 Report--

This article mainly introduces how to deal with the anti-crawler mechanism, which has certain reference value. Interested friends can refer to it. I hope you will gain a lot after reading this article. Let Xiaobian take you to understand it together.

Proxy IP brings a lot of convenience to the work of network workers. However, in the process of crawler obtaining data, even if a stable high hidden proxy IP is used, the crawler will control the number and speed of visits to the target website, resulting in unsuccessful work.

The problem of crawler is mainly the anti-crawler mechanism of website. This article shows you some ways to deal with anti-crawler mechanisms.

Crawler crawling time is long, may encounter Captcha check whether it is a robot, not because it is a crawler robot. There are three ways to handle the Captcha problem. One is to download the Captcha locally and manually input the Captcha for verification, but the cost is relatively high, because this method cannot be completely automatically captured and requires manual intervention. Another method is to use image recognition Captcha and automatically fill in the Captcha. However, with the development of the Internet, Captcha becomes more and more complex, and it becomes more and more difficult to identify the correct Captcha with images. The last option is to purchase an auto-coding platform, which is convenient but requires purchase.

Distributed crawlers can be used for web crawler work. This method not only has the opportunity to prevent anti-crawlers, but also to increase the catch.

If the simulation login is more troublesome, you can directly log in on the Internet to remove cookies to do crawlers, but this is not a long-term use method, because cookies may expire after a period of use.

Each website will have different anti-crawler methods, need to use different methods to deal with, according to the specific situation of specific analysis to the right medicine.

Thank you for reading this article carefully. I hope that the article "How to Deal with Anti-crawler Mechanism" shared by Xiaobian will be helpful to everyone. At the same time, I hope that everyone will support you a lot and pay attention to the industry information channel. More relevant knowledge is waiting for you to learn!

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