Google AdMob - false positive by network signature

The current network signature of [Google AdMob](https://etip.exodus-privacy.eu.org/trackers/e9c80f4c-cf20-4a7b-8aa0-4db002597a21/) is:

* 2mdn.net
* .google.com <- This one cause a high number of false positives
* dmtry.com
* doubleclick.com
* doubleclick.net
* mng-ads.com

In my opinion the `.google.com` is a bit too generic as it also covers `drive.google.com` `docs.google.com` any may more domains. Or was the entry's author (@pnu-s) intention that Google can display ads on a large number of their sites like included in search results on www.google.com or inside/next to an email on mail.google.com?

Start by reviewing the Google AdMob tracker entry linked in the issue and how its network signature matches domains. Determine which Google domains should remain associated with AdMob and verify that unrelated services such as drive.google.com and docs.google.com no longer produce false positives; the issue is done when the signature is appropriately narrowed.

Written by the indexing model from the issue text.