If you find your site unavailable, it may be caused by a server or network failure but is most often caused by an internet failure somewhere between your computer and the server. Running a traceroute will help you determine where the problem starts.
tracert [-d] [-h maximum_hops] [-j host-list] [-w timeout] target_name
Parameters: -d Specifies to not resolve addresses to host names.
-h maximum_hops Specifies the maximum number of hops to search for target.
-j host-list Specifies loose source route along the host-list.
-w timeout Waits the number of milliseconds specified by timeout for each reply.
target_name Name or IP address of the target host.
To run traceroute from your Windows computer do the following:
In WINDOWS XP and before 1. Click on 'Start' and then 'Run'.
2. In the box type 'cmd' (without the quotes) and click OK.
Windows XP and Previous go to step 3.
Click on Start icon and select All Programs > Accessories and then Command Prompt
3. At the command prompt that pops up in the black box type tracert domain.ext (replace domain.ext with your domain name and extension). It may take a few seconds but will give a traceroute from your computer to the destination you typed in.
4. To copy the results, right click on the window and choose 'Select All'. This will copy the contents to your clipboard and the box contents will turn white with black text.
5. Go to the document you want to put the results into (email to tech support), right click and choose paste (or ctrl V).
6. You may now close the traceroute window.
Find the command prompt in the Metro Interface. Usage as above from command prompt.
If you want a great visual representation of a traceroute over time like the one below, get a copy of Pingplotter here.