Tracert can only prove the existence of this address by using icmp command, and accessing this address requires the server where this address is located to start the corresponding service. For example, if you want to visit its web page, you need this address to open [ip address] and [port number] to test whether the service of this server is started. For example,1.1.1.1.1.80 123. If a black box is fed back after entering the car, nothing is displayed, which proves that it is open. If they can't access it at this time, there is something wrong with their website.