> ## Documentation Index
> Fetch the complete documentation index at: https://docs.flagsync.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Monitoring and Analysis

> Evaluate experiment performance in FlagSync with real-time and historical data.

## Monitoring Your Experiment

Monitoring and analysis in FlagSync let you assess how feature flag variants perform during and after an experiment.

By reviewing impressions, events, and metrics, teams can determine which variants optimize goals like conversions or user engagement, refining strategies with data-driven insights.

## Data Sources

<CardGroup cols={3}>
  <Card icon="eye" title="Impressions">
    <p>Automatically logged when `client.flag()` serves a variant.</p>

    <br />

    <p>e.g., tracking which users see "Join Now" or "Register".</p>
  </Card>

  <Card icon="bolt" title="Events">
    <p>Captured via `client.track()` in your code.</p>

    <br />

    <p>e.g., logging sign-ups or purchases tied to those variants.</p>
  </Card>

  <Card icon="chart-line" title="Metrics">
    <p>Aggregates impressions and events into conversion rates or numeric values for analysis.</p>

    <br />

    <p>e.g., average spend</p>
  </Card>
</CardGroup>

## Interpreting Results

<CardGroup>
  <Card title="Conversion Rate" icon="percent">
    <p>Compare the percentage of users acting after seeing a flag variant (events ÷ impressions).</p>

    <br />

    <Tip>e.g., if "Sign Up" has 25% conversions and "Register" has 15%, "Sign Up" may outperform.</Tip>
  </Card>

  <Card title="Numeric Metrics" icon="hashtag">
    <p>Assess aggregated values per user—e.g., higher purchase amounts with a discount.</p>

    <br />

    <Tip>e.g., if no discount averages \$50 and a 10% discount averages \$60, the 10%  variant wins.</Tip>
  </Card>
</CardGroup>

<Note>
  Use these insights to adopt the winning variant or inform the next experiment iteration.
</Note>

### Real-World Example

Here’s how the `Register Conversion` experiment plays out in a live FlagSync experiment, testing if new button copy increases sign-up conversions:

<Frame>
  <img alt="Flag creation form filled out" src="https://mintcdn.com/flagsync/dTCxWdoh9aH45uVC/images/experiment-results.webp?fit=max&auto=format&n=dTCxWdoh9aH45uVC&q=85&s=f17819453d2d5c8480fb14527d3a3025" width="650" height="762" data-path="images/experiment-results.webp" />
</Frame>

It's clear that "Join Now" has resulted in more conversions.

## Accessing Experiment Data

* **Live Monitoring**: View real-time results on the [Experiments Dashboard](https://www.flagsync.com/dashboard/experiments/) while the experiment runs.
* **Past Iterations**: For completed experiments, go to the specific experiment page and select the "Previous Iterations" tab to review historical data.

## Next Steps

Decided on a winner?

* Keep the top variant live in [Feature Flags](/flags/overview).
* Refine with a new experiment in [Create an Experiment](/experiments/create-experiment).