Add search analytics documentation

insights/overview.mdx

@@ -10,14 +10,32 @@
 
 ## Metrics
 
-Use the range selector to adjust the time period for displayed data. Select visitors, views, or actions to display a line graph showing trends over the selected time period.
+Use the range selector to adjust the time period for displayed data. Select visitors, views, actions, or searches to display a line graph showing trends over the selected time period.
 
 - **Visitors**: Unique visitors
 - **Views**: Total page views
 - **Actions**: Combined count of API calls, navbar link clicks, and CTA button clicks
+- **Searches**: Total number of search queries performed in your documentation
 - **Popular Pages**: Paths to the most-visited pages and their view counts
 - **Referrers**: Top traffic sources directing users to your docs
 
+## Search analytics
+
+Search analytics help you understand what users are looking for in your documentation. The search metrics include:
+
+- **Search query**: The exact terms users searched for
+- **Hits**: Number of times the query was searched
+- **CTR**: Click-through rate showing the percentage change compared to the previous period
+- **Top clicked page**: The most frequently clicked result for each search query
+- **Last searched**: Timestamp of the most recent search for that query
+
+Use search analytics to:
+
+- **Identify content gaps**: Discover what users are searching for but may not be finding easily
+- **Optimize existing content**: See which pages users click on most frequently for specific queries
+- **Track search trends**: Monitor changes in search behavior over time to understand evolving user needs
+- **Improve discoverability**: Use high-volume search queries to inform your content structure and navigation
+
 ## Using overview data
 
 Review your overview analytics to: