[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Security](./puppeteer.protocol.security.md)
## Protocol.Security namespace
Security
Signature:
```typescript
export namespace Security
```
## Interfaces
| Interface | Description |
| --- | --- |
| [CertificateErrorEvent](./puppeteer.protocol.security.certificateerrorevent.md) | There is a certificate error. If overriding certificate errors is enabled, then it should be handled with the handleCertificateError
command. Note: this event does not fire if the certificate error has been allowed internally. Only one client per target should override certificate errors at the same time. |
| [CertificateSecurityState](./puppeteer.protocol.security.certificatesecuritystate.md) | Details about the security state of the page certificate. |
| [HandleCertificateErrorRequest](./puppeteer.protocol.security.handlecertificateerrorrequest.md) | |
| [InsecureContentStatus](./puppeteer.protocol.security.insecurecontentstatus.md) | Information about insecure content on the page. |
| [SafetyTipInfo](./puppeteer.protocol.security.safetytipinfo.md) | |
| [SecurityStateChangedEvent](./puppeteer.protocol.security.securitystatechangedevent.md) | The security state of the page changed. |
| [SecurityStateExplanation](./puppeteer.protocol.security.securitystateexplanation.md) | An explanation of an factor contributing to the security state. |
| [SetIgnoreCertificateErrorsRequest](./puppeteer.protocol.security.setignorecertificateerrorsrequest.md) | |
| [SetOverrideCertificateErrorsRequest](./puppeteer.protocol.security.setoverridecertificateerrorsrequest.md) | |
| [VisibleSecurityState](./puppeteer.protocol.security.visiblesecuritystate.md) | Security state information about the page. |
| [VisibleSecurityStateChangedEvent](./puppeteer.protocol.security.visiblesecuritystatechangedevent.md) | The security state of the page changed. |
## Type Aliases
| Type Alias | Description |
| --- | --- |
| [CertificateErrorAction](./puppeteer.protocol.security.certificateerroraction.md) | The action to take when a certificate error occurs. continue will continue processing the request and cancel will cancel the request. |
| [CertificateId](./puppeteer.protocol.security.certificateid.md) | An internal certificate ID value. |
| [MixedContentType](./puppeteer.protocol.security.mixedcontenttype.md) | A description of mixed content (HTTP resources on HTTPS pages), as defined by https://www.w3.org/TR/mixed-content/\#categories |
| [SafetyTipStatus](./puppeteer.protocol.security.safetytipstatus.md) | |
| [SecurityState](./puppeteer.protocol.security.securitystate.md) | The security level of a page or resource. |