[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [LayerTree](./puppeteer.protocol.layertree.md) > [Layer](./puppeteer.protocol.layertree.layer.md) > [backendNodeId](./puppeteer.protocol.layertree.layer.backendnodeid.md) ## Protocol.LayerTree.Layer.backendNodeId property The backend id for the node associated with this layer. Signature: ```typescript backendNodeId?: DOM.BackendNodeId; ```