Umbraco-CMS/src/Umbraco.Core/IBackOfficeInfo.cs

namespace Umbraco.Cms.Core;

public interface IBackOfficeInfo
{
    /// <summary>
    ///     Gets the absolute url to the Umbraco Backoffice. This info can be used to build absolute urls for Backoffice to use
    ///     in mails etc.
    /// </summary>
    string GetAbsoluteUrl { get; }
}