Learn what optimization intervals are and why they matter.
Optimization intervals help you make sense of your results. Each interval captures a snapshot of your optimization’s configuration — like which variations are live and what the primary goal is — so your data stays accurate when changes happen. The results for that configuration accumulate over time. If the optimization’s configuration changes in a way that affects results, the current interval ends and a new one begins.
Why intervals exist
Optimize uses intervals to preserve the accuracy of your results and ensure they're as meaningful as possible. For example, metrics like conversion rate are tied to your optimization’s primary goal. If that goal changes, lumping in past results could skew the data — and those results may no longer be valid.
By ending the current interval and starting a new one, Optimize keeps your data clean, so you can compare performance based on consistent conditions and make informed decisions.
How intervals work
Think of an interval like a checkpoint. Every time your optimization crosses certain thresholds — like updating the primary goal or launching a new variation — Optimize starts a new interval to begin collecting fresh data.
Each interval captures:
- Goal configuration — the primary goal your optimization is tracking
- Active variations — which variations were live during that time
- Recorded results — performance data accumulated across that span
You can view and compare different intervals using the date range dropdown at the top of your results. This lets you isolate data and quickly understand how changes impacted performance.