View combined impact over time by switching to cumulative mode.
The performance and traffic allocation over time charts show granular results per day or week by default — helpful for spotting dips or spikes. You can also switch to a cumulative view to see a running sum of results from the first data point forward.
Granularity vs. cumulative
Granularity view
- Each point on the chart shows individual results that occurred for that time period
- Helps you identify short-term trends or troubleshoot unexpected dips
Cumulative view
- Each point shows the total results accumulated over time up to that point
- Helps you assess the long-term impact of each variation
Good to know
Both views use the same underlying data — you're just changing how the results are grouped and visualized.
How to show cumulative results
Open your Optimize site in Webflow, then:
- Click Optimizations in the Navigation panel
- Click an optimization
- Click Weekly above the Performance over time or Traffic allocation over time charts
- Select Daily cumulative or Weekly cumulative