[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [DOMSnapshot](./puppeteer.protocol.domsnapshot.md) > [InlineTextBox](./puppeteer.protocol.domsnapshot.inlinetextbox.md) > [startCharacterIndex](./puppeteer.protocol.domsnapshot.inlinetextbox.startcharacterindex.md) ## Protocol.DOMSnapshot.InlineTextBox.startCharacterIndex property The starting index in characters, for this post layout textbox substring. Characters that would be represented as a surrogate pair in UTF-16 have length 2. Signature: ```typescript startCharacterIndex: integer; ```