Happy New Year 2021! Using app_offline.htm for ASP.NET Maintenance Pages

Greetings, 2021! I’m in the middle of a software deployment right now, hoping adoption goes well and that everyone enjoys using the application.

Quick Tip: app_offline.htm

Here’s a basic tool I just learned: place an app_offline.htm file in the root of an ASP.NET application (ASP.NET 2.0 or later) to quickly let users know the page, or the whole app, is down for maintenance. Download my sample file below.

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