ASP.NET Core MVC 5 is a lightweight, open source, highly testable framework built on top of the ASP.NET Core 5 runtime and based on the model-view-controller (MVC) architecture. Part of the new .NET 5, the ASP.NET Core MVC 5 framework combines the capabilities of .NET Core, MVC, and Web API.
Security headers are a technique that can be used to improve the security of a web application. There are several ways in which you can specify security headers in your ASP.NET Core MVC application. This article talks about these ways with code examples wherever appropriate.