I'm sure they are using Kestrel behind IIS. https://docs.microsoft.com/en-us/aspnet/core/fundamentals/servers/kestrel?view=aspnetcore-2.1&tabs=aspnetcore2x#whe

I'm sure they are using Kestrel behind IIS. https://docs.microsoft.com/en-us/aspnet/core/fundamentals/servers/kestrel?view=aspnetcore-2.1&tabs=aspnetcore2x#when-to-use-kestrel-with-a-reverse-proxy https://docs.microsoft.com/en-us/aspnet/core/fundamentals/se...