Microsoft Blazor Server decouple the application layers as Blazor Components (in form of Razor component) with the support of C# to write the logic for the client browser. Blazor built on the top of the ASP.Net Core framework. It provides support for hosting Razor components on the server in an ASP.NET Core app. Blazor uses the SignalR for making a connection in the ASP.Net server to the DOM at Client Side.