>>The hosting company tech support told me this:
>>
>>"There is always a startup delay with any ASP.NET site if it does not receive constant traffic.
>>
>>After 20 minutes of inactivity server unload application domain, any subsequent hit will trigger application reload and ASP.NET JIT compilation which results in 5 to 10 second delay."
>
>I know that's the line with DNN apps, but it just doesn't happen with my homegrown ASP.NET apps. Perhaps I'm just lucky, but I think the real reason is some bad code in DNN.

Here's another interesting point found in here: http://forums.asp.net/thread/1224347.aspx

"Your regular ASP.NET 2.0 site DOES need the pinging too. It just needs to compile alot less code th[A]n DNN so it looks like your regular site doesn't need pinging."