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[Home](./index.md) &gt; [puppeteer](./puppeteer.md) &gt; [SecurityDetails](./puppeteer.securitydetails.md) &gt; [validTo](./puppeteer.securitydetails.validto.md)

## SecurityDetails.validTo() method

<b>Signature:</b>

```typescript
validTo(): number;
```
<b>Returns:</b>

number

[Unix timestamp](https://en.wikipedia.org/wiki/Unix_time) marking the end of the certificate's validity.

