What types of proxy IPs are there? How to choose a proxy for crawler data collection?

With the development and progress of society, the needs of the Internet industry are becoming more and more extensive, and the IP proxy industry has gradually developed, resulting in different types of IP proxies, such as dynamic proxy IP, static proxy IP, high-hidden proxy IP, http proxy IP, etc.

Knowing how these proxy IPs are classified and what they mean, you can then know how to choose a proxy IP that is suitable for your business. Let's take a look at how to classify and select proxy IPs.

Classification by anonymity:

High anonymous proxy IP, ordinary anonymous proxy IP, transparent proxy IP. High anonymous proxy IP is the most anonymous proxy IP, and the target website server is generally unable to identify it; ordinary anonymous proxy IP has a lower degree of anonymity, and the target website server knows that the user is using the proxy IP to access it, and generally restricts access; transparent proxy IP cannot be accessed anonymously, or there is a certain risk of exposing the real Internet IP of the user terminal.

·By time:

Static proxy IP and dynamic proxy IP. Static proxy IP is fixed, while dynamic proxy IP has a time limit and will become invalid after the time limit has passed. Dynamic proxy IP can be divided into long-term proxy IP and short-term proxy IP. The time limit of short-term proxy IP generally ranges from a few seconds to a few minutes; the time limit of long-term proxy IP generally ranges from a few minutes to a few days.

Classification by protocol type:

http(s) proxy IP and socks5 proxy IP. There are more than these protocols, but there are two most common protocols on the market. http(s) proxy IP supports both http and https protocols

Classification by purity:

Exclusive IP pool and shared IP pool. The fewer people use the proxy IP, the higher the purity. For example, the exclusive IP pool, the proxy IP used by one person, has extremely high purity; the shared IP pool, no more than 10 people use it, which can be regarded as a high-purity shared IP pool; other unexplained proxy IP packages are usually shared IP pools.

The above are several common types of proxy IPs that we often encounter when choosing proxy IPs. We can comprehensively consider, test and evaluate the characteristics of the proxy IP types according to our business needs, and then choose the proxy IP that suits our own business.