Due to the entry into force of the modification to the “Law on Information Society Services” (LSSICE), established by Royal Decree 13/2012, it is mandatory to obtain the express consent of the user on all web pages that use obligatory cookies before the user browses said pages.

What are cookies?
Cookies and other similar technologies such as local shared objects, flash cookies, and tracking pixels are tools used by web servers to store and retrieve information about visitors, as well as to allow for the proper operation of the site.

Through the use of these devices, the web server is allowed to remember some pieces of data concerning the user, such as his/her preferences for viewing the pages on that server, his/her username and password, the products that interest him/her the most, etc.

Cookies that Fall Under the Regulations and Cookies that are Unregulated

According to the EU Directive, cookies that require informed consent by the user are analytics cookies  and advertising and affiliation cookies. Cookies that do not require consent are those of a technical nature and those necessary for the operation of the website or the provision of the services expressly requested by the user.
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What types of cookies are there?
Analytics cookies: they collect information on website use.
Social cookies: those necessary for external social networks.
Affiliate cookies: these allow for visits from other websites to be tracked—websites with which our website has an affiliation contract (affiliate companies).
Advertising and behavioral cookies: these collect information about the preferences and personal choices of the user (retargeting).
Technical and functional cookies: these are strictly necessary for the use of the website and for the provision of the contracted services.
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Cookies Used on this Website
PHPSESSID: a technical cookie that is strictly necessary and which contains the session identifier. It is deleted when the browser is closed.
_lang: a technical cookie that is strictly necessary and which contains the language of the session. It is deleted when the browser is closed.
ac_cookies: a technical cookie that is strictly necessary and which contains the value of whether the installation of cookies has been accepted or not. It expires 1 year after its last update.
_ga: a Google Analytics cookie that enables the unique visits function. The first time a user accesses the website through a browser this cookie will be installed.

Only in the event that the user changes browser will he/she be considered another user. It expires 2 years after its last update.
_gat: This cookie is associated with Google Analytics Universal. It is used to limit request speed, thus limiting data collection on high-traffic sites. It expires after 10 minutes.
_utma: a Google Analytics cookie that records the date of the first and last time the user visited the website. It expires 2 years after its last update.
_utmb: a Google Analytics cookie that records the time of arrival to the website. It expires 30 minutes after its last update.
_utmc: a Google Analytics cookie used for interoperability with the urchin.js tracking code. It is deleted when the browser is closed.
_utmt: a Google Analytics cookie. This cookie is used to process the type of request made by the user. It expires when the session closes.
_utmv: a Google Analytics cookie. This cookie is used to segment demographic data. It expires when the session closes.
_utmz: a Google Analytics cookie that stores the traffic source or a campaign in order to explain how the user arrived at the website. It expires 6 months after its last update.
_gid: This cookie is associated with Google Analytics. It is used to distinguish the users. It expires after 24 hours.
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Withdrawal of Consent to Install Cookies and How to Delete Cookies from the Browser
Chrome
Click the Tools icon.
Click on Settings.
Click on Show Advanced Options.In the “Privacy” section, click on Content Settings.
Delete Cookies: Select all cookies and site data…
Do not allow cookies to be stored.
Click on “Clear Browsing Data” (empty cache).
Close the browser and restart it.
For more information about Chrome click here.

Internet Explorer. 11 Version
Go to Tools | Internet Options.
Click on the “General” tab.
In the “Browsing History” section, click “Delete browsing history on exit.”
Click on “Delete files.”
Click on “Delete cookies.”
Click on “Delete.”
Click on “Accept.”
Close the browser and restart it.
For more information about Internet Explorer, click here.

Firefox
Select Firefox | History | Clear Recent History.
Next to “Details,” click on the down arrow.
Select the following checkboxes: Cookies, Cache, Active Logins.
Using the “Time Interval to Delete” drop-down menu, select “All.”
Click on “Delete Now.”
Close the browser and restart it.
You can accept or reject cookies individually in Firefox Settings, in the History section available at Tools > Options > Privacy.
For more information about Mozilla Firefox, click here.

Safari
Select the Safari Icon | Edit | Restore Safari.
Select the following checkboxes: Clear History, Delete all Website Data.
Click on Reset.
Close the browser and restart it.
For more information about Safari, click here.

Opera
Options-Advanced-Cookies.
The cookie options control the way Opera handles cookies and, therefore, their acceptance or rejection.
For more information about Opera, click here.

Other Browsers
Check the documentation of the browser you have installed.