A URL (Uniform resource locator) that allows the merchant to track the identity of their affiliates. This link will include both the identification number of the affiliate as well as extra useful information for the advertiser.
The advertiser will be able to track not only the identity of the affiliate but their activity as a part of an affiliate program. The agreement between the affiliate and the advertiser will generally state that it is the responsibility of the affiliate to arrange these affiliate links and to ensure that all the traffic they send arrives correctly.
Affiliate links are an excellent way to expand the offerings of an ecommerce business as it allows the affiliate to sell other people’s products and generate revenue without any inventory or product creation of their own.