Proxy Anti-Crawler (Anti-Crawler Code)

Proxy Anti-Crawler (Anti-Crawler Code)
In the age of the Internet, web crawlers are being used more and more widely, and they can help us quickly access all kinds of information on the Internet. However, there are also some malicious crawlers, which take advantage of the automation of the program and keep visiting the website, thus leading to problems such as too high website load and slow response time. In order to solve this problem, some websites have started to take anti-crawler measures in the hope of stopping these malicious crawlers from causing damage to their websites. In this article, we will introduce the anti-crawler code in proxy anti-crawler.

proxy anti-crawler

Proxy anti-crawler is a commonly used anti-crawler means, it is set up through the proxy server, the real access IP hidden, so that the crawler can not track the real source of access. In the proxy anti-crawler implementation, you need to use the anti-crawler code.

Anti-crawler code

Anti-crawler code refers to some codes with anti-crawler function, they can be used in various ways, such as setting User-Agent, restricting the access frequency, CAPTCHA and so on, to prevent the access of malicious crawlers. Among them, setting User-Agent is one of the more common anti-crawler means. In the program, we can set the User-Agent to the User-Agent of a regular browser, so as to trick the website into treating our crawler as a normal browser.
In addition, limiting the access frequency is also a very effective anti-crawler tool. In the crawler program, we can set a time interval to control the frequency of the crawler's request to the website, so as to avoid the website being maliciously attacked.
Finally, CAPTCHA is also a common defense. By showing the CAPTCHA to the visitor, it verifies that the visitor is a real user, thus preventing malicious crawlers from attacking the website.
In conclusion, anti-crawler code is a very important tool in the implementation of anti-crawler. By using anti-crawler code, we can effectively prevent malicious crawlers from causing damage to our website.