[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Target](./puppeteer.protocol.target.md) > [AttachToBrowserTargetResponse](./puppeteer.protocol.target.attachtobrowsertargetresponse.md) > [sessionId](./puppeteer.protocol.target.attachtobrowsertargetresponse.sessionid.md) ## Protocol.Target.AttachToBrowserTargetResponse.sessionId property Id assigned to the session. Signature: ```typescript sessionId: SessionID; ```