According to the period of time that they remain activated in the terminal equipment, we can distinguish: -Session cookies: They are a type of cookies designed to collect and store data while the user accesses a web page. They are usually used to store information that is only interested in keeping for the provision of the service requested by the user on a single occasion (eg a list of products purchased). -Persistent cookies: They are a type of cookies in which the data is still stored in the terminal and can be accessed and processed during a period defined by the person responsible for the cookie, which can range from a few minutes to several years.