Affiliate marketing is one of the most popular and accessible ways to earn passive income online. But if you’re just getting started, the terminology can be confusing. To help you navigate the affiliate marketing world, we’ve put together a list of 15 essential affiliate marketing terms every beginner (and even experienced marketer) should know.
1. Affiliate
An individual or company that promotes a product or service in exchange for a commission on sales or other actions generated through their unique referral link.
2. Affiliate Program
A program offered by companies that allows affiliates to promote their products/services and earn a commission. Examples include Amazon Associates, ShareASale, and Impact.
3. Affiliate Link
A unique URL provided to an affiliate to track traffic, leads, or sales generated through their marketing efforts.
4. Commission
The money an affiliate earns for generating a sale, lead, or specific action through their affiliate link. This can be a percentage of a sale or a fixed amount.
5. Conversion
A desired action taken by a user after clicking on an affiliate link—such as making a purchase, signing up for a service, or filling out a form.
6. CPA (Cost Per Action)
A payment model where affiliates earn money when users complete a specific action, such as a purchase or registration.
7. CPC (Cost Per Click)
A model where affiliates are paid based on the number of clicks their affiliate links receive, regardless of whether a sale is made.
8. CPM (Cost Per Mille)
“Cost per thousand impressions” — affiliates earn income for every 1,000 times their ad is shown, not necessarily clicked.
9. EPC (Earnings Per Click)
A metric that shows how much an affiliate earns on average per click. It’s a good way to gauge the profitability of a campaign.
10. Cookie Duration
The length of time a tracking cookie remains active after a user clicks an affiliate link. For example, if the cookie duration is 30 days, any purchase made within that time will earn the affiliate a commission.
11. Landing Page
The page users are directed to after clicking an affiliate link. A well-optimized landing page increases the likelihood of conversion.
12. Referral
A user who completes an action (such as a purchase or sign-up) after being referred by an affiliate.
13. CTR (Click-Through Rate)
The percentage of users who click on a link out of the total number who view it. Formula: (Clicks ÷ Impressions) × 100.
14. Affiliate Network
A platform that connects merchants (advertisers) and affiliates. It handles tracking, reporting, and payments. Examples include CJ Affiliate, Awin, and Rakuten.
15. Sub-Affiliate
An affiliate recruited under another affiliate. Often part of affiliate programs with multi-tier or referral commission structures.
Why These Terms Matter
Knowing these affiliate marketing terms is essential to build profitable campaigns, understand your performance metrics, and work efficiently with affiliate platforms and partners. Whether you’re blogging, building niche sites, or running paid ads, a solid understanding of the vocabulary helps you grow faster and smarter.
Final Thoughts
Mastering these 15 affiliate terms will put you ahead of the game and help you make informed decisions in your affiliate marketing journey. The more fluent you become in affiliate language, the better your chances of long-term success.