[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [DOMSnapshot](./puppeteer.protocol.domsnapshot.md) > [NodeTreeSnapshot](./puppeteer.protocol.domsnapshot.nodetreesnapshot.md) > [backendNodeId](./puppeteer.protocol.domsnapshot.nodetreesnapshot.backendnodeid.md) ## Protocol.DOMSnapshot.NodeTreeSnapshot.backendNodeId property `Node`'s id, corresponds to DOM.Node.backendNodeId. Signature: ```typescript backendNodeId?: DOM.BackendNodeId[]; ```