Forbidden:
Incent traffic
Discord
Doorways
Facebook
Google search
SMS
Frauds
Push traffic
Toolbar
Craiglist
Coregistrations
Emailing
Viral traffic
SEM
Brand bidding
Keywords
Misspellings
Typos
Torrents
Rebrokering
Use pictures of celebrities, actors or any other famous people on banners, pre-landers
Click under
Pop under
Chat traffic
In-app traffic