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The navigator has a series of numbers - these provide information - hover for details
On the RHS is Ping Time - this is your computer sending an "Are you there" ping to the server then measuring the time to get a response. Above the ping is 32 milli seconds (0.032 of a second). If you see a red X - you have lost internet connection. If the numbers get higher than a few hundred - check your internet connection.
Above - 115 characters were sent in the request to the server, 2,784,730 characters were returned, the App server took 1.47 seconds to build that response, the Web server took 1.835 seconds to prepare that response to send and the total round trip took 2.405 seconds to have all the information at your machine.
Click on the numbers and you will be presented with the details of the request and response.
