代理IP到底咋影响爬虫速度？ 举个真实场景：你用单IP吭哧吭哧爬数据，结果被网站封了，换成代理IP后反而更慢了。别急，问题就出在代理质量和使用姿势。比如某些代理节点超过500ms，或者同时开100个线程把代…

真实用户伪装vs服务器 搞网络爬虫的老张最近遇到件怪事：用着某平台的数据中心代理，刚抓两天数据就被封了号。换了个住宅代理方案，连续跑半个月都没翻车。这事儿其实特简单——住宅代理IP来自家庭宽带，数据…

Teach you to save the proxy IP as a JSON file The old iron people know that crawlers, proxy IP used like changing clothes - have to change often new. But every time you manually organize the IP data can be a whole person to collapse, today we will use Python the whole point of real, teach the guys how to save the proxy IP information into JSON format, ...

Why is the Linking Crawler always blocked? The problem is here All those who have engaged in the Linking data crawl know that the biggest headache is that the account is blocked. Many people think that the crawler code is not written well enough, in fact, 80% problem in the IP exposure. The anti-climbing system of the Collingwood thieves, as long as the same IP is detected to operate frequently, immediately ...

Teach you to turn the proxy IP data into a CSV file The old iron people engaged in data collection know that the proxy IP run out to be stored and analyzed. But a lot of tools lead out of the format is messy, today teach you to use Python whole job, the proxy IP data packaged in a clear, directly to CSV form to take away. Pick ...

Proxy IP and HTML parsing thing Crawlers should know, directly with their own IP grip data is like wearing the same clothes to different shopping malls - sooner or later by the security guards. At this time, proxy IP is the equivalent of dress up magic weapon, especially with ipipgo this kind of professional service provider, can let you play in the data collection...

Java proxy crawler how to play to not turn over the car? What is the most fearful thing about web crawlers? The IP seal is definitely in the top three! Last year, there is a buddy to do e-commerce price comparison, just run three days on the target site to pull the blacklist. Later, with the proxy IP rotation, directly open more than five crawler processes are fine. Here to teach you to use Java a whole set of self ...

Why do I need a proxy IP to load local resources? Take a real scenario: you developed a software to capture the national weather data, the results of the server in Hangzhou, want to take the weather data of a place in Xinjiang, the other site directly to you to pop the verification code. This time if you use the local IP in Xinjiang to request, just like the local people shopping ...

Why do you need a proxy IP to get stock market data? As we all know from doing data collection, those financial websites are more strict in preventing crawlers than thieves. Last month, a buddy used his own broadband to capture data for three days, and his IP was directly blocked until 2099. This is the time to rely on the proxy IP to spread the risk, as if playing guerrilla...