[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [DOM](./puppeteer.protocol.dom.md) > [BackendNodeId](./puppeteer.protocol.dom.backendnodeid.md) ## Protocol.DOM.BackendNodeId type Unique DOM node identifier used to reference a node that may not have been pushed to the front-end. Signature: ```typescript export type BackendNodeId = integer; ```