puppeteer/website/versioned_docs/version-21.9.0/api/puppeteer.tracing.start.md
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---
sidebar_label: Tracing.start
---
# Tracing.start() method
Starts a trace for the current page.
#### Signature:
```typescript
class Tracing {
start(options?: TracingOptions): Promise<void>;
}
```
## Parameters
| Parameter | Type | Description |
| --------- | ----------------------------------------------- | -------------------------------------------------- |
| options | [TracingOptions](./puppeteer.tracingoptions.md) | _(Optional)_ Optional <code>TracingOptions</code>. |
**Returns:**
Promise&lt;void&gt;
## Remarks
Only one trace can be active at a time per browser.