Whitelisting Fabric & Crashlytics IP

Question

Question - would like to allow access to Fabric & Crashlytics from our server which means that we need to allow it through our firewall for access. Can anyone share the

Answer 1

Mike from Fabric and Firebase here. We don't support IP whitelisting as our IP addresses can and do change quite frequently. You should whitelist the following domains:

*.crashlytics.com
*.fabric.io

Update as of July 2020:

From the recent contact with the Firebase team, we got the following details:

You can whitelist the following domains on ports 80 and 443:

For Firebase Crashlytics (SDK versions 4.x and up):

*.crashlytics.com
crashlyticsreports-pa.googleapis.com

For Fabric Crashlytics (SDK versions 3.x):

*.crashlytics.com
*.fabric.io

For Firebase Crashlytics, there's one more domain which needs to be whitelisted even though it's not officially informed by Firebase team

firebasecrashlyticssymbols.googleapis.com

Answer 2

From what I understand a firewall usually blocks incoming connections, fabric just requires outgoing, so no need for whitelisting.

If you have a strict situation, just inpect the firewall logs with your sysadmin and make the whitelist entries, it can be different over time and you should be able to update it, so this way you know how to obtain it.