puppeteer/website/versioned_docs/version-19.1.0/api/puppeteer.securitydetails.validto.md

---
sidebar_label: SecurityDetails.validTo
---

# SecurityDetails.validTo() method

**Signature:**

```typescript
class SecurityDetails {
  validTo(): number;
}
```

**Returns:**

number

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