How do I run a traceroute?

Traceroute is a common diagnostic tool for displaying the route (path) and measuring transit delays of packets across a network. The traceroute command is available on most modern operating systems.

CloudFlare Support will frequently ask for the output of a traceroute (you must have CloudFlare turned on) if you are experiencing connectivity issues.


  1. Open the Start menu
  2. Click on Run
  3. Type cmd and then press the OK button to open a command prompt
  4. At the prompt, type tracert and press the Enter key
  5. To copy the output, right-click anywhere in the window and select Mark. You can press Enter to copy all of the output, or select the text you want to copy and then right-click with your mouse. Paste the copied text by hitting CTRL + V.

Note: To traceroute IPv6 you would simply execute :  tracert -6 'your_domain_url'


  1. Open a terminal window
  2. Type traceroute at the prompt and press the Enter key

Note: To traceroute IPv6 you would simply execute traceroute6

Mac OS

  1. Go to Applications -> Utilities -> Network Utility -> Traceroute
  2. Type the domain or IP address in the appropriate input field and press Trace. You can also open a terminal window and use the same instructions as you would for performing a traceroute in Linux.

Note: To traceroute IPv6 you would simply execute traceroute6

If you activated your website through a hosting partner you should traceroute to (or another subdomain set to an orange cloud)

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