Glossary
GEO
The country (sometimes the region or city) a campaign targets and an offer accepts. Written as a two-letter code: US, DE, BR. The same offer pays and converts differently in every GEO.
Also called: geo-targeting, country.
Every offer lists the GEOs it accepts, and traffic from anywhere else is not paid. Every source lets you target by country, and most by region, city and language.
GEOs are grouped into tiers by purchasing power and ad cost. A Tier-1 GEO like the US has expensive clicks and high payouts; a Tier-3 GEO has cheap clicks, low payouts and often a different payment culture, such as cash on delivery.
Related terms: Tier-1, Tier-2, Tier-3, Targeting, Offer.