Q:

AppInsights reachable check from internal Web

I would like to ask you if you know how to make (at least idea) check on my internal Web (c# .netcore) if I can reach AppInsights.
The purpose is to check if firewall is blocking reachable to AppInsights.
Thank you. Problem is that my web is changing places of hosting - its a reason why I need web (cshtml) visualization if I can reach AppInsights.
Any ideas?
Thank you

A:

There are a few ways you can try:
Method 1:
If the web project has been configured with application insights, just run the web project, and then nav to azure portal -> your application insights, see if the telemetry data are collected; Or you can use tools like Fiddler, when running the web project, check the response of application insights.
Method 2: 
Check if these firewall exceptions are set, sample like below:
https://dc.services.visualstudio.com:443

For more details, you can refer to this doc and this doc.

