Crawler collection needs to use a large number of IP to visit and collect the target website. Usually, when we use the original crawler method IP, it is likely that IP will be forbidden to visit the web page. Therefore, crawler users use proxy IP to prevent IP from being blocked. In terms of the hiding level of proxy IP addresses, there are three types of proxies:
Transparent proxy: It not only changes the requested information, but also transmits the real IP address, with less stealth.
Plain anonymous proxy: Can hide the client's real IP, but change our request information, the server might think we use a proxy. In the process of using this kind of proxy, even if the target website can not get your IP address, but can know the use of proxy, some web pages that can search IP can still find your IP address.
High-hiding proxy (advanced anonymous proxy) : High-hiding proxy is the most widely used, with high usability, stability, and security.
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