An affiliate URL, also known as an affiliate link, is a unique web address that is used by affiliates to promote products or services and earn a commission for any resulting sales. This URL contains a special tracking code that identifies the affiliate and ensures they receive credit for any purchases made through the link. Affiliate URLs are commonly used in affiliate marketing programs, where businesses partner with individuals or other companies to promote their products and drive sales. By using an affiliate URL, affiliates can track the success of their promotions and earn a percentage of the profits, making it a mutually beneficial arrangement for both the business and the affiliate.