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---
sidebar_label: SecurityDetails
---
# SecurityDetails class
The SecurityDetails class represents the security details of a response that was received over a secure connection.
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#### Signature:
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```typescript
export declare class SecurityDetails
```
## Remarks
The constructor for this class is marked as internal. Third-party code should not call the constructor directly or create subclasses that extend the `SecurityDetails` class.
## Methods
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Method
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Modifiers
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Description
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[issuer() ](./puppeteer.securitydetails.issuer.md )
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The name of the issuer of the certificate.
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[protocol() ](./puppeteer.securitydetails.protocol.md )
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The security protocol being used, e.g. "TLS 1.2".
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[subjectAlternativeNames() ](./puppeteer.securitydetails.subjectalternativenames.md )
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The list of [subject alternative names (SANs) ](https://en.wikipedia.org/wiki/Subject_Alternative_Name ) of the certificate.
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[subjectName() ](./puppeteer.securitydetails.subjectname.md )
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The name of the subject to which the certificate was issued.
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[validFrom() ](./puppeteer.securitydetails.validfrom.md )
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[Unix timestamp ](https://en.wikipedia.org/wiki/Unix_time ) marking the start of the certificate's validity.
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[validTo() ](./puppeteer.securitydetails.validto.md )
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[Unix timestamp ](https://en.wikipedia.org/wiki/Unix_time ) marking the end of the certificate's validity.
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< / tbody > < / table >
