CPA term explained

CPA (Cost Per Action) — a popular payment model of online advertising, the compensation is paid only for certain actions of visitors to the sites of advertisers, such as new user registration, loan through the web, buying in Internet shops, watching videos etc.

Variety CPA:

• CPS (Cost Per Sale) – the purchase price, widely used in Internet Commerce;
• CPL (Cost Per Lead) – generating actions (leads), in which the advertiser receives contact details of users and their actual location. Used on sites voting, when you reserve goods without providing contact details.