Find Bandwidth usage on app engine subdomains mappend on the same service

I have sole problem find bandwidth usage logs about different domains. This is the infrastructure:

Domains mapped:

  1. example.com
  2. example2.com
  3. example3.com
  4. ... example10.com and every subdomain with wildcard, for example domain.example.com and so on.

All this domains, are mapped on the same App Engine, we will call this service "appengine".

We need to know all bandwidth for each one, including bandwidth used on Google Clouds Bucket.

Because we are using the same service for all domains, we can't find that, we can see only request made on application inside the logs but without any information about the requests made on bucket by appengine.

There is some way to get all information? We can "build" some "tags" on request to handle this problem?

Thank you


Google App Engine do not assign a static amount of bandwidth, instead it will escalate depending of the use or the demand of the domain the App engine, here you can see how the incoming and out coming bandwidth are describe on the App engine service, and here you can see the quotas of the App Engine service