> For the complete documentation index, see [llms.txt](https://developer.harness.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.harness.io/feature-management-experimentation/use-fme/release-monitoring/alerts/traffic-insights.md).

# Traffic insights

This section visualizes the number of unique keys (users, accounts, or your defined traffic type) served each treatment over the selected time period. The data is shown in a line graph, with each line corresponding to a selected treatment.

![](/files/3RyzqK5c5tp5LhAbIra1)

If a time range is selected that spans across versions, vertical lines indicate when a new feature flag version was created. Additionally, a table displays a summary of unique keys and total impressions per treatment.