because it simple...

ping ip,ping domain name

Main content page - ping ip.A traceroute is a modified "ping" packet (echo request). When you "ping" a site, you send over an echo request and that site responds back that it received it. The amount of time it takes for the packet to get to that site and then return to you is the "ping time".
The IP address 127.0.0.1 is set by convention to always indicate your own computer. Therefore, a ping to that address will always ping yourself and the delay should be very short. This provides the most basic test of your local communications.
From there I do a reverse DNS (rDNS) lookup to see what hostname the ISP provides. A hostname is something like www.example.com, or can be more specific to include regional information.
Both the computer and the submarine's sonar send out a "ping", in the form of either a series of packets or a brief burst of sound. The ping "bounces" off the target and then returns to let you know the target is there.
This was partly due to the increasing use of ping for target reconnaissance, for example by Internet worms such as Welchia that flood the Internet with ping requests in order to locate new hosts to infect.