Support for .NET Core 2.0 and newer is currently under development. We're really excited about how easy it is to use and how familiar it will feel compared to our existing .NET Framework support.
Can you tell me more about your .NET Core website? Does it use .NET Core 2.0 or newer? You mentioned that the website is hosted in IIS; does it make use of the ASP.NET Core Module? Depending on your environment, you may be a good candidate for our early access beta program.
We have 3 websites currently using .Net Core 1.1.2. One is being upgraded to 2.0 within a month. We do use ASP.NET Core Module. This website is integrated with several other applications and is fairly complex, so we would love to use AppInternals to troubleshoot it's configuration and performance.
We would be very interested to hear more about your early access beta program.