[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Security](./puppeteer.protocol.security.md) > [SecurityStateChangedEvent](./puppeteer.protocol.security.securitystatechangedevent.md) > [schemeIsCryptographic](./puppeteer.protocol.security.securitystatechangedevent.schemeiscryptographic.md) ## Protocol.Security.SecurityStateChangedEvent.schemeIsCryptographic property True if the page was loaded over cryptographic transport such as HTTPS. Signature: ```typescript schemeIsCryptographic: boolean; ```