In server hosting a Looking glass is often sought after and used for potential consumers to see network pings, speeds and traceroutes to the providers server/s.
Firstly to test your ping to this location enter your ip or the ip address you want the ping for and click Run Test (NOTE: you can easily get and copy your ping in the top right).
Ping is the time it takes to send data from the host to destination and back. Lower ping means less lag in gaming and is very important, it can also mean faster data transfers and lower buffering for media.
To test traceroute its the same principle, enter your chosen ip address and run the test, you will get a log file like output below.
A traceroute shows the path your sent/received packets take to get to you, less is best but you can see how many networks around the globe can help transfer your data.
You can also accurately see the download speed to the Looking glass server by using downloading a test file (100MB or 1GB).