Forbidden:
-SEM
-Context advertising in Google / Yandex / Begun
-Creating groups on behalf of the advertiser
-Contextual advertising of the brand
-Keywords
-Adult traffic
-API movement
-Driving traffic directly from the search engines straight to the advertiser's site without an intermediate site
-Contextual advertising if the user searches for the advertiser's company name
-Using the advertiser's company name in your link