"Web crawler" is no stranger to those engaged in Internet big data. Even if they do not use it, they also know a little about it. In the era of Internet big data, where does data come from? Only a crawler can get data from a target, so what does an HTTP proxy have to do with a crawler?
1. HTTP proxy is an important part of web crawler.
However, its usage is very large, and the returned data needs to access the target server through HTTP proxy. If the servers that accesses the target server frequently cannot be used soon and will be shielded by the other server, then crawler cannot run naturally. Therefore, the emergence of HTTP proxy is to solve the problems encountered by crawler.
2, ADLS dial-up VPS: bought a large number of dynamic VPS servers, continuous dial-up to obtain an servers, and then put it into your own servers pool, after processing to produce extraction links.
Decompress servers with API links. servers collection: In order to save money or develop internshservers opportunities, some users will collect some public free servers, but such servers users are few, because it is not secure, poor quality, can not meet the needs of crawlers. Proxy servers address: Purchase a proxy servers address from the proxy servers provider website.
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