Asalam o Alikum! hope you are fine. Well dear ping meaning is Packet internet ghopher. Which is taken from a game ping pong. Ping meanings that you ask someone are you alive and wait for a specific set time. So if he/she replys. then its meaning pong. That they are alive and you got the responce withn time.So the site ping meaning that you ping a site that it is working fine and up on internet if it replys that's mean it is working if not then sorry it is not online. you may check as example in dos if you type cmd in the run command and press run the dos interface will open. So there just type For example ping www . vuhelp . com and press enter it will show you the responce. So you will see it in 128mls TTL which is miliseconds and TTL meanings Time to Live. regards