[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [DOM](./puppeteer.protocol.dom.md) > [BackendNode](./puppeteer.protocol.dom.backendnode.md) > [backendNodeId](./puppeteer.protocol.dom.backendnode.backendnodeid.md) ## Protocol.DOM.BackendNode.backendNodeId property Signature: ```typescript backendNodeId: BackendNodeId; ```