The quality of different proxy IPs is the same, and generally speaking, it can be judged based on the following factors:
1. Availability
The availability rate is the ratio of the extracted proxy IPs that can be used normally. If we cannot use a proxy IP to request the target website or the request times out, it means that the proxy is unavailable. Generally speaking, the availability rate of free proxies is generally low.
2. Response speed
The response speed can be measured by the time consumed, that is, the time consumed from using this proxy to request the website until the response is received. The shorter the time, the faster the proxy responds. Users can extract a certain sample during the test, and only count the normal and available proxies during the calculation, and calculate the average time consumed.
3. Stability
Since users need to use a large number of proxies when crawling, if one proxy responds very quickly, it will get a response very quickly, but the proxy used for the next request responds very slowly and it takes thirty seconds to get a response, it will inevitably affect the crawling efficiency. Therefore, users need to test the stability of the proxy IP and try to avoid the situation where one is very fast and the next is very slow.
4. Price
Of course, price is something that needs to be considered. If a proxy has excellent response speed and stability, but the price is very high, this is also unacceptable. Therefore, when choosing a proxy IP, users need to choose several service providers for comparison, so that they can choose a truly cost-effective proxy.
5. Security
When users use proxy IP, they also need to pay attention to whether their information will be leaked by the proxy server. Many free proxy servers will use the user's browser cookies to obtain user account passwords and other information, so when choosing a proxy IP, users should try to choose a larger proxy service provider like Kookeey.
This article comes from online submissions and does not represent the analysis of kookeey. If you have any questions, please contact us
