How Affiliate Marketing Works — The Honest Truth

Affiliate marketing generates over $17 billion annually worldwide. Some people make a full-time income from it. Many others waste months building sites that earn nothing. Here is how the industry actually works — without the hype. The Basic Mechanics Affiliate marketing has three parties: The merchant : A company selling a product or service (e.g., NordVPN, Binance, Kinsta) The affiliate : A person or website that promotes the product and earns a commission The customer : The end user who buys through the affiliate link When a customer clicks an affiliate link, a tracking cookie is placed in their browser. If they make a purchase within the cookie window (typically 30-90 days), the affiliate earns a commission. The customer pays the same price — the commission comes from the merchant marketing budget. Commission Models Different programs pay differently: Cost per sale (CPS) : You earn a percentage of each sale. Common in e-commerce (5-20%) and SaaS (20-50%). Cost per action (CPA) : A f