api-docs/docs/browser-tracker/markdown/browser-tracker.clientsession.sessionid.md
<!-- Do not edit this file. It is automatically generated by API Documenter. -->
[Home](./index.md) > [@snowplow/browser-tracker](./browser-tracker.md) > [ClientSession](./browser-tracker.clientsession.md) > [sessionId](./browser-tracker.clientsession.sessionid.md)
## ClientSession.sessionId property
An identifier for the session (same as domain\_sessionid)
<b>Signature:</b>
```typescript
sessionId: string;
```