RTT.ICU

About this tool

Trace the network path to any host with an online traceroute tool that shows every hop and per-hop timing from multiple global locations.

  • Enter the target host or IP whose path you want to inspect.
  • Pick the origin region for the trace.
  • Read each hop's hostname, IP, and response times to find where delay or loss starts.
Frequently asked questions
What does a traceroute actually show?
It lists every router between the probe and your target. Each hop shows its address and how long packets took to reach it, which reveals whether slowness comes from your provider, a transit network, or the destination itself.
Why do some hops show asterisks or timeouts?
Many routers deprioritize or drop the TTL-exceeded messages traceroute relies on. A timeout in the middle is normal; what matters is whether later hops still respond and whether the final hop completes.
How is traceroute different from MTR?
Traceroute takes a single snapshot of the path. MTR runs continuously and reports per-hop loss and latency statistics over time, which makes it better for diagnosing intermittent problems.