api-docs/docs/browser-tracker/markdown/browser-tracker.activitytrackingconfiguration.minimumvisitlength.md
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[Home](./index.md) > [@snowplow/browser-tracker](./browser-tracker.md) > [ActivityTrackingConfiguration](./browser-tracker.activitytrackingconfiguration.md) > [minimumVisitLength](./browser-tracker.activitytrackingconfiguration.minimumvisitlength.md)
## ActivityTrackingConfiguration.minimumVisitLength property
The minimum time that must have elapsed before first heartbeat
<b>Signature:</b>
```typescript
minimumVisitLength: number;
```