[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [DOMSnapshot](./puppeteer.protocol.domsnapshot.md) > [DOMNode](./puppeteer.protocol.domsnapshot.domnode.md) > [contentLanguage](./puppeteer.protocol.domsnapshot.domnode.contentlanguage.md) ## Protocol.DOMSnapshot.DOMNode.contentLanguage property Only set for documents, contains the document's content language. Signature: ```typescript contentLanguage?: string; ```