Enter a domain name or IPv4 address (example www.yourdomain.com)
The MTR test is based on the linux program MTR, which combines the functionality of the "traceroute" and "ping" programs in a single network diagnostic tool. The test investigates the network connection between the chosen monitoring location and the specified host. After it determines the address of each network hop between the servers, it sends a sequence ICMP ECHO requests to each network hop in order to determine the quality of the link to each hop. See the MTR official page
for more info on MTR.