The cookies listed in this article are required only for accessing the Backoffice. You can include these in your own cookie policy, if you wish.
The below cookies are necessary for accessing the Umbraco Backoffice and functioning of the website. They allow you to enjoy the contents and services you request.
| Name | Purpose | Expiration |
|---|---|---|
| UMB_PREVIEW | Allows a previewed page to act as a published page only on the browser which has initialized previewing. | Session |
| UMB-WEBSITE-PREVIEW-ACCEPT | Client-side cookie that determines whether the user has accepted to be in Preview Mode when visiting the website. | Session |
| umb_installId | Used to store the Umbraco software installer id. | Session |
| UMB_UPDCHK | Enables your system to check for the Umbraco software updates. | Session |
| UMB-XSRF-V | Used to store the backoffice antiforgery token validation value. | Session |
| UMB-XSRF-TOKEN | Set for angular to pass in to the header value for "X-UMB-XSRF-TOKEN" | Session |
| TwoFactorRememberBrowser | Default authentication type used for storing that 2FA is not needed on next login | Session |
| UMB_SESSION | Preserves the visitor's session state across page requests. | Session |
The UMB_SESSION cookie is secure if you are using HTTPS pages. However, if you wish to secure the cookie in your code, add the following in the Program.cs file after Build();
services.AddSession(options =>
{
options.Cookie.Name = "UMB_SESSION";
options.Cookie.HttpOnly = true;
options.Cookie.SecurePolicy = CookieSecurePolicy.Always;
});For information on the rest of the cookies, see the Constants-Web.cs file on Github.