Any proxy IP has an expiration date. After the expiration date, it cannot be used. Therefore, before using it, you should first understand the usage time of the IP and replace it when it is about to expire. Proxy IP can be divided into long-term proxy IP and short-term proxy IP according to timeliness. A long-term agent is an IP address that has a long lifetime and can be used repeatedly. The survival time of short-term proxy IP is only a few minutes, even tens of seconds.ip代理https://www.kuaidaili.com的具体问题可以到我们网站了解一下，也有业内领域专业的客服为您解答问题，值得您的信赖！
