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# WKWebsiteDataStore

An object that manages cookies, disk and memory caches, and other types of data for a web view.

```
@MainActor class WKWebsiteDataStore
```

## Overview

Use a [`WKWebsiteDataStore`](/documentation/WebKit/WKWebsiteDataStore) object to configure and manage web site data. Specifically, use this object to:

- Manage cookies that your web site uses
- Learn about the types of data that websites store
- Remove unwanted web site data

Create a data store object and assign it to the [`websiteDataStore`](/documentation/WebKit/WKWebViewConfiguration/websiteDataStore) property of a [`WKWebViewConfiguration`](/documentation/WebKit/WKWebViewConfiguration) object before you create your web view.

By default, `WKWebViewConfiguration` uses the default data store returned by the [`default()`](/documentation/WebKit/WKWebsiteDataStore/default()) method, which saves website data persistently to disk.

To implement private browsing, create a nonpersistent data store using the [`nonPersistent()`](/documentation/WebKit/WKWebsiteDataStore/nonPersistent()) method instead.

To implement profile browsing, create a persistent data store using the [`init(forIdentifier:)`](/documentation/WebKit/WKWebsiteDataStore/init(forIdentifier:)) method, passing an identifier that you use to identify the data store.

## Topics

### Creating a data store object

[`default()`](/documentation/WebKit/WKWebsiteDataStore/default())

Returns the default data store, which stores data persistently to disk.

[`nonPersistent()`](/documentation/WebKit/WKWebsiteDataStore/nonPersistent())

Creates a new data store object that stores website data in memory, and doesn’t write that data to disk.

[`init(forIdentifier:)`](/documentation/WebKit/WKWebsiteDataStore/init(forIdentifier:))

Returns the persistent data store with the unique identifier you provide.

### Finding data stores

[`fetchAllDataStoreIdentifiers(_:)`](/documentation/WebKit/WKWebsiteDataStore/fetchAllDataStoreIdentifiers(_:))

Fetches an array of identifiers from existing data stores that have identifiers.

### Inspecting data store properties

[`identifier`](/documentation/WebKit/WKWebsiteDataStore/identifier)

An identifier that uniquely identifies a data store.

[`isPersistent`](/documentation/WebKit/WKWebsiteDataStore/isPersistent)

A Boolean value that indicates whether this object stores data to disk.

### Retrieving a cookie store

[`httpCookieStore`](/documentation/WebKit/WKWebsiteDataStore/httpCookieStore)

The object that manages the HTTP cookies for your website.

### Retrieving specific types of data

[`fetchDataRecords(ofTypes:completionHandler:)`](/documentation/WebKit/WKWebsiteDataStore/fetchDataRecords(ofTypes:completionHandler:))

Fetches the specified types of records from the data store.

[`allWebsiteDataTypes()`](/documentation/WebKit/WKWebsiteDataStore/allWebsiteDataTypes())

Returns the set of all the available data types.

### Removing specific types of data

[`removeData(ofTypes:for:completionHandler:)`](/documentation/WebKit/WKWebsiteDataStore/removeData(ofTypes:for:completionHandler:))

Removes the specified types of website data from one or more data records.

[`removeData(ofTypes:modifiedSince:completionHandler:)`](/documentation/WebKit/WKWebsiteDataStore/removeData(ofTypes:modifiedSince:completionHandler:))

Removes website data that changed after the specified date.

### Removing a data store

[`remove(forIdentifier:completionHandler:)`](/documentation/WebKit/WKWebsiteDataStore/remove(forIdentifier:completionHandler:))

Removes the data store that matches the identifier you provide.


---

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