phw released some scan data.
If you run an exit and find your relay fingerprint next to a Google AS name on the list linked below you might want to change your DNS server settings.
Note this list is based on data from May 2016 (so it does not necessarily represent the current situation).
https://gist.githubusercontent.com/nusenu/3b346031a88fb24d0e8b662f3e13697e/r...