Web crawler you must use a proxy IP

IP Agent is to replace the computer's real IP software, web crawler to crawl data program is a necessity, not a network proxy IP reptile work, but tools to facilitate the work of it.
Web crawler must use a proxy IP it? The answer is definitely no, but the following occurs necessarily need to use a proxy IP.
1. In the reptile when the site is being crawled mechanism of anti-reptile, if you use an IP repeatedly visit a web page, it is easy to appear to be IP restrictions, can no longer access the site, then you need to use a proxy IP.
2. In reptiles crawl a website data, the equivalent repeatedly to greet a person, a very large chance of being pulled black. Use a proxy IP switch to a different IP, each thought the other sites are a new user, naturally, there is no risk of pulling black.
3. If the traffic volume is small, the efficiency is not much requirement, you can not use a proxy IP. If the workload task, fast ripping speed, the target server will be easy to find, so you need to use a proxy IP to change IP and then crawl.
Through the above description, description web crawler is not necessary to use a proxy IP, but they are a good tool to work efficiently. IP cloud proxy flash online stable, easy to operate, covering a wide range of the city is the best helper web crawler.
Proxy IP allows Web crawler to crawl data faster
now, a lot of people work every day to deal with the network. Web crawlers that many workers do every day tasks, web crawler is crawling data of the target site with the program, after obtaining the data can be analyzed to improve their website.
Proxy IP allows Web crawler to crawl data faster
web crawler program is simple, but not good to do. Now many sites have confrontational approach, that is, anti-reptile mechanisms, frequency crawlers If you are running too fast, or too many times visited, are easy to find, so that was closed IP, which no longer continue to work, there's proxy IP to solve this problem. After using proxy IP, can be timed to replace IP, IP crawling target different parts of the site will not be found, you can achieve good results. Some proxy IP software with automatic change IP functionality, can automatically change IP, which saves a lot of time, greatly improving the efficiency of the reptiles.
So proxy IP enables faster Web crawler to crawl data, IP proxy flash cloud stability, availability of up to 97%, more than the city across the country, you can manually replace the IP can be automatically switched, and simple, is a good reptile work helper.

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Origin blog.51cto.com/14338698/2402294