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I’ve got a couple DNN portals I manage and I need a solution to keep them ‘alive’ during slack traffic times. After a given time of inactivity IIS will unload the DNN application from memory which will effect load time for the first client request. DNN has the ‘KeepAlive.aspx’ file that I hit with a wget command from a CRON job every 5 minutes. I’m dubious of the effectiveness of the this method. Does anyone have any others ideas?
A good website monitoring service will most likely provide you with a URL to check to see if the site is functioning, that is what the Keepalive URL is for. Have the service check the URL more frequently than 15 minutes and you should be good to go with keeping the site up. There’s always a chance the site will go down for some other issue, but the keep alive service should bring it back up if that happens and another user hasn’t already hit it.