This tab shows a summary of network related data for the whole log or the currently selected items:

Elapsed Time

This is the time in seconds from the start of the first request in the summary to the end of the last item. This can be used to find the total time to download a page or set of pages.

Network Round Trips

This value indicates how many requests resulted in an HTTP request and response message being exchanged with a web server. Some entries do not cause a network round trip because either an error occurred (e.g. ERROR_INTERNET_NAME_NOT_RESOLVED) or because no network request was required (e.g. entries resulting in a (Cache) response).

Downloaded Data

This is the total amount of data that has been received from web server(s) (i.e. response headers and content). In the case of HTTPS connections this includes the overhead of the SSL encryption process.

Uploaded Data

The total amount of data that has been sent to web server(s) (i.e. request headers and POST data). In the case of HTTPS connections this includes the overhead of the SSL encryption process.

HTTP Compression Savings

This total number of bytes by which downloaded content was reduced in size by HTTP compression.

DNS Lookups

The total number of times that a network name like 'www.google.com' was converted to an IP address (e.g. 72.14.221.103)

TCP Connects

This is the number of times that a new TCP level connection had to be made with web server(s) in the summary data. An excessively high number of TCP connects may indicate that HTTP persistent connections, also known as keep-alive connections, have not been correctly configured on the server.