Free online Ping tool which allows you to check if IP or site alive by sending packets to reach host or use it look up DNS information.
What are ping?
Ping (ping) - is a network command that comes with all modern operating systems. This program allows you to measure response time (sometimes say "reaction time") computer to query the network. Also, it is used to check the accessibility of a computer / device on network.
Shows how long it takes for packets to reach host
Ping is a computer network administration utility used to test the reachability of a host on an Internet Protocol (IP) network and to measure the round-trip time for messages sent from the originating host to a destination computer. The name comes from active sonar terminology which sends a pulse of sound and listens for the echo to detect objects underwater. With computer operating systems Ping or PING stands for Packet INternet Groper but is ordinarily written as "ping" instead of the proper acronym for which it stands.
If the results show a series of replies, the connection is working. The time shows you how fast the connection is. If you see a "timed out" error instead of a reply, there is a breakdown somewhere between your computer and the domain. In this case the next step is to perform a traceroute.