Site Down For Maintenance - app_offline.htm

Sometimes we require to display the Site Under Construction message to the visitor while we are fixing bugs, upgrading features etc. For this just place the app_offline.htm on the root directory of the application.When ASP.Net sees that it will shut down the application and stop processing any new incoming request for that application. ASP.Net will send the content of this file "app_offline.htm" for all the incoming request. This file must have at least 512 bytes of content within it. If you do not have that content just place some content and comment them.