[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Security](./puppeteer.protocol.security.md) > [VisibleSecurityState](./puppeteer.protocol.security.visiblesecuritystate.md) > [certificateSecurityState](./puppeteer.protocol.security.visiblesecuritystate.certificatesecuritystate.md) ## Protocol.Security.VisibleSecurityState.certificateSecurityState property Security state details about the page certificate. Signature: ```typescript certificateSecurityState?: CertificateSecurityState; ```