My Azure WebApp seems to go idle even with AlwaysOn turned on

Question

I have two an Azure WebApps. Both of them have the "AlwaysOn" option set to true, but even now the WebApps go idle after a bit.

If I don't query the WebApp for a few minutes, the next request I make to the WebApp takes significantly longer. Too long to be acceptable for production.

The WebApp runs a C# ASP.NET MVC 5 project which is my project's API.

Can I do anything to prevent this from keeping on happening?

Answer 1

It seems like having turned off the HTTP to HTTPS rewrite solved the issue. The response is still slow, but much faster than before.