So, in my recent work on Application Insights I noticed that I was seeing quite a lot of failed outbound requests to cts.cloud.sitecore.net .

Well, I raised this with Sitecore support; it is Sitecore’s “Consumption Tracking” service, and they gave some links:

• https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB0057838
• https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB0424335

They also mentioned that you can get a “no-track” license, but we’d have to contact our account manager.

Therefore, I see 3 options:

1. Get a no-track license.
2. Reconfigure the firewall.
3. Filter out the failed dependency so it doesn’t keep logging to App Insights (and then pretend it isn’t there).

I prefer option 2 – letting the traffic out, personally.