Traceroute
Trace the network path to a host, hop by hop, with round-trip time at each router along the way.
Shows the path our server takes to reach the host, hop by hop.
Enter a host or IP to trace its route
Each hop along the path appears with its own round-trip time.
Traceroute reveals the path network traffic takes to reach a host by sending probes with increasing time-to-live (TTL) values and recording which router responds at each step. Each responding router is one hop, shown with its IP address, reverse-resolved hostname when available, and round-trip time.
A hop that never replies doesn't necessarily mean the path is broken there — many routers are configured to silently drop or deprioritize the probes traceroute uses without dropping normal traffic, so a run of timeouts followed by the destination replying successfully usually just means those particular routers don't answer, not that they're down.
This is most useful for telling apart two different problems that look identical from the outside: a slow site (where most hops are fast and the delay appears late, near the destination) and a slow network path (where latency climbs steadily from hop to hop long before reaching the destination at all).