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# WKSecurityOrigin

An object that identifies the origin of a particular resource.

```
@MainActor class WKSecurityOrigin
```

## Overview

A [`WKSecurityOrigin`](/documentation/WebKit/WKSecurityOrigin) object is a transient, data-only object that identifies the host name, protocol, and port number associated with a particular resource. You don’t create [`WKSecurityOrigin`](/documentation/WebKit/WKSecurityOrigin) objects directly. Instead, WebKit creates them for the resources it loads. A *first-party* load is any load URL has the same security origin as the requesting web site. First-party webpages can access each other’s resources, such as scripts and databases.

Because a [`WKSecurityOrigin`](/documentation/WebKit/WKSecurityOrigin) object is transient, it doesn’t uniquely identify a security origin across multiple delegate method calls.

## Topics

### Getting the Host Information

[`host`](/documentation/WebKit/WKSecurityOrigin/host)

The security origin’s host.

[`port`](/documentation/WebKit/WKSecurityOrigin/port)

The security origin’s port.

### Getting the Host Protocol

[`protocol`](/documentation/WebKit/WKSecurityOrigin/protocol)

The security origin’s protocol.


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