How to make crawlers work unimpededly, efficiently and steadily day and night without stopping is the dream of countless crawlers. Facts have once again proved that there is nothing difficult in the world, only for those who are interested. As long as you have an exclusive IP pool, you can let crawlers no longer be afraid of IP blocking, and rest easy from then on. So the question is, how to have an exclusive IP pool? Some netizens provided three solutions: 1. Crawl free proxy IP and build proxy IP pool; 2. Purchase proxy IP and build proxy IP pool locally after obtaining the IP; 3. Purchase a batch of dial-up servers and build proxy IP by yourself Pool. Which method is better? Let us analyze and analyze it together. 1. Crawling free proxy IPs and building proxy IP pools This method is used by many people, because it is free, and the word “free” is enough to attract most people. If you don’t know how to crawl, you can find a lot of tutorials on the Internet, and you can also find a lot of projects on github. There is no longer a word about how to crawl here. If you are interested, you can go to the Internet to find the code or write it yourself. Regardless of the method of implementation, it doesn’t matter, what matters is how effective it is. I have tried and crawled one hundred and eighty thousand free proxy IPs. After some verification, only one hundred and eighty are really effective. I have also asked many friends who crawl free proxy IPs. The effect is very poor. Can crawl to play, or do tests, want to use it to complete crawler tasks, as soon as possible to dispel this unrealistic idea. 2. Buy proxy IP and build proxy IP pool. There are many friends who choose to buy proxy IP. After all, the effect of free proxy IP is really bad. Although paid proxy IP has to pay a certain monetary price, the effect is obviously much better, but because it is shared The IP pool is always subject to one or another limitation in the process of using it, such as one extraction every 5 seconds, or the number of extractions each time, the amount of concurrency used, the number of bound IP whitelists, and so on. Paid proxy IP can meet most needs, but for friends with some special requirements, it is like a shackle, and they feel uncomfortable. They want to extract many or many at a time, and store them in a locally established IP pool. Here, this method optimizes the solution to a certain extent and makes it easier to use, but it also increases maintenance costs. At the same time, it is affected by the IP validity period, which is not perfect. 3. Purchase a dial-up server and build a proxy IP pool. Perfectionists choose to buy a dial-up server by themselves to build a proxy IP pool. Spent a certain cost, bought a batch of dial-up servers, spent a certain amount of time writing code, or found some ready-made software online, set up the proxy IP pool, and started the enthusiastic crawling work, which was indeed used in the initial stage It’s cool, after all, it’s exclusive to one person, and the effect is leveraged. But after a period of time, there will be problems like this, and it takes a lot of time to maintain, and sometimes the problems that appear are difficult to solve and annoying, and the daily crawler tasks must be completed. At this time, I can’t wait for it. Split yourself in half to complete the task. Therefore, building a proxy IP pool by yourself is not that high-end players are inaccessible, and it also requires a huge increase in maintenance costs. It can be seen that the above three methods can be used to build a proxy IP pool. The first method can be used for fun and for novices to learn. It is difficult to be competent for formal crawler tasks. The second method is suitable for most formal crawler tasks. Tasks, but for some more demanding tasks, it’s a little overwhelming. Although the third method can complete the task perfectly, it requires more costs, including dial-up server costs, technical costs, and time costs for maintaining the proxy IP pool. Is there a more perfect solution than the above three solutions? The answer is yes, the high-quality agent of Yiniu Cloud is more perfect. It can achieve the same effect as the third solution, but it does not require you to spend extra time and technology to maintain the IP pool. Everything is built and maintained by Yiniu Cloud. Well, you can directly use the IP in the IP pool. You can choose the region of the dial-up server by yourself, define the dial-up time yourself, and then use the API to extract the link to obtain the IP to use. It is in place in one step, efficient, fast, and extremely convenient.