Google Commerce Search Deployment Guide - Manual (Page 23)

Chapter 5 GCS Stats and Analytics
Google Analytics (GA) is the preferred method for analyzing GCS performance on your site,
although you can use any third-party analytics package. Google Analytics does require some
additional configuration, but before we look at implementing GA there are a few ways to get
some basic GCS statistics without any extra code.
GCS Statistics page
The GCS Statistics page within the control panel provides very basic statistics. You can select
fixed date ranges of Day (previous day)/Week (current week)/Month (current month)/Past Year/
Since Creation, and view the top queries for those ranges.
The count for unique searches is the total number of unique queries, and the total number
of results is the total number of results returned by all queries. The total results number is
approximately the average number of results per page x the total number of searches.
Also shown are popular query terms.
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