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