An affiliate link is tool used in affiliate marketing programs. A unique link is assigned to an affiliate partner by a partner program. When a website user clicks on the link, that click is attributed to the affiliate partner. The link contains the affiliate's ID or username to enable tracking. This means that traffic sent by the affiliate can be recorded (and rewarded).
If the person that clicks the link later converts (for example, by purchasing the software) then that conversion is also attributed to the affiliate partner.
Example: Connectco signed up for Razor's affiliate program and was assigned an affiliate link. Their link got 20,000 clicks each month, meaning a nice payout for Connectco.
Affiliate partners are partnerships that drive traffic to your properties through tracked links and earn a cut when that traffic converts. Affiliate partners are a subset of marketing partners.
An affiliate partner can be a business, an individual, or another affiliate program. Affiliate partnerships can expand your company's reach and increase revenue through increased exposure and marketing reach.