IETF Traceroute tool Help Page

You may submit either a hostname (e.g. or either an IPv4 or IPv6 address. The tool will attempt to resolve an IPv6 address for the specified host first, and if it is able to do so it will return the results of an IPv6 trace. Otherwise, it will return the results of an IPv4 trace.

If the PING option is selected, the tool will also attempt to perform both a ping and a ping6 to the host and return those results.


Due to the potential for misuse, this tool includes throttling features.

  • Individual users are limited to one trace per minute.
  • In addition, there is a limit to the number of tests that can be run within a given span of time by all users.
  • Please do not reload or refresh your browser while the test is running, or you will trip the throttling test.