Affiliate marketing is a branch of online marketing that is based on the achievement of certain results or actions. Affiliates (companies, websites, ...) are in charge of advertising to merchants (stores, advertisers, service providers) by publishing their advertisements or promotions. These affiliates obtain a commission when the user enters their website and performs a certain action (for example, clicking on a banner, registering or buying). This type of marketing differs especially in the cost perceived by the company. The Cost per Action (CPA) allows the advertiser to pay only for each of the users who perform the determined action and not per campaign.

Affiliate marketing emerges as an extremely interesting alternative for people who want to work with Internet sales, as well as being a great tool for producers who want to increase the dissemination of their products online.

The affiliate acts as an intermediary who advertises the product or service and gets buyers from the original seller. That is why the seller gives a commission to the intermediary thus becoming an affiliate of the seller.

An affiliate program is the agreement in which a company pays the affiliate (person or company) a commission for sending them traffic and / or sales.

The usual way of crediting a sale by the affiliate relies on a cookie. The user takes it with him when visiting a website and entering a link that contains an ID or identification of the affiliate. Currently, it is committed to creating authoritative digital content based on opinion and assessment about a product or service. It is about avoiding the outright sales style when it comes to obtaining performance with affiliation, and this is the most widespread method among individuals