Please note that traceroutes can appear similar to port scans. If you see a suspected port scan alert, for example from your firewall, with a series of ports in the range 33434 - 33465, coming from pinger.cern.ch it is probably a reverse traceroute from our web based reverse traceroute server. Please do NOT report this to us, it will almost certainly be a waste of both of our times. For more on this see
Traceroute security issues.

You are about to request a traceroute that may be interpreted as an 'attack' from pinger.cern.ch, by a firewall protecting your browser: 54.163.70.249 (ec2-54-163-70-249.compute-1.amazonaws.com). Have you read the description above and is it OK to proceed?
Your host is: 54.163.70.249 (ec2-54-163-70-249.compute-1.amazonaws.com).