I have an app which is meant to be used inside an internal network behind firewall. There is a requirement to enable Firebase Analytics to this app, and the network admin need to allow the Firebase endpoints without allowing all the Google Services. So far I came to know that I need to allow *.firebase.com and *.firebaseio.com in the firewall.
But the challenge here is, will other Google sites be allowed through the firewall by allowing those domains? If so, what are the sites? I am posting this question since StackOverflow was mentioned as one of the support channel in the official support page.
If you turn on debug mode or intercept the traffic, you will see traffic to https://app-measurement.com:
<FIRAnalytics/DEBUG> Uploading data. Host: https://app-measurement.com/a
<FIRAnalytics/DEBUG> Received SSL challenge for host. Host: https://app-measurement.com/a来源：https://stackoverflow.com/questions/41105032/alowing-firebase-analytics-domain-names-without-allowing-other-google-services