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This website uses its own and third-party cookies to offer you a better experience and service. By browsing or using our services as a user, you accept our use of cookies. However, you have the option to prevent the generation of these files and their deletion by selecting the corresponding option in your browser.
Remember that in the case of blocking the use of cookies in your browser it is possible that some services or functionalities of our web pages are not available.
Below you will find detailed information on what cookies are, their types, how you can disable them in your browser and how to specifically block the installation of third-party cookies.


What are cookies?

They are text files that are downloaded to a terminal  equipment or device (computer, mobile phone, tablet...) in order to store data that can be updated or recovered by the entity responsible for its installation.
These small files generated by the web pages visited provide data with which to analyze the user's journey on the websites to achieve the best interaction strategy between the user and the website.
Cookies cannot harm your computer as they can only store the information that the user has entered in the browser or that is included in the page request. They cannot run code and cannot be used to access your computer.

Why are cookies important?

  • They allow websites to work in a more agile way and adapted to the preferences of users; for example, they store the language or currency of the user's country or detect their access device.

  • They make it possible to identify and resolve errors, establish protection and security levels that prevent or hinder attacks against the website or its users.

  • They serve as a great help so that statistical data can be known and thus improve the quality of their services and the user experience.

  • They provide innumerable advantages in the provision of interactive services, facilitating navigation and usability of the web for the user.

What do we use them for?

To personalize and make it as easy as possible for the user to navigate through its portals, both those of the headquarters and those of the centers, and to carry out statistical and usage analysis. In addition, thanks to them, you will be able to:

  • Ensure that web pages can function correctly.

  • Store user preferences, such as the language you have selected or the font size you prefer to display your content.

  • Know the browsing experience of Internet users.

  • Collect anonymous statistical information, such as which pages have been visited, which links have been selected or how long the entire portal has been visited.

Remember that cookies are only associated with an anonymous user and his computer, and do not provide references that allow deducing the user's personal data.
In any case, you can configure your browser to notify and reject the installation of the cookies sent, without this impairing the user's ability to access the content.

Cookie types

Depending on the responsibility of its management:

  • Own cookies: are those that are sent to your computer and managed exclusively by us for the best functioning of the website. The information we collect is used to improve the quality of our service and your user experience.

  • Third-party cookies: if you interact with the content of our websites, third-party cookies may also be established (for example, by clicking on social network buttons or viewing videos hosted on another website), which are those established by a different domain from our site. Web. We cannot access the data stored in the cookies of other websites when you browse them.

Depending on the time frame:

  • Session cookies: these are temporary cookies that remain in the browser's cookie file until the web page is abandoned, so none is recorded on the user's hard drive. The information obtained through these cookies is used to analyze traffic patterns on the web. In the long run, this allows us to provide a better experience to improve the content and facilitate its use.

  • Permanence or persistence: they are stored on the hard drive and the web page reads them each time a new visit is made. Permanent cookies expire when the purpose for which they serve is fulfilled or when they are manually deleted. They are generally used to facilitate the different services offered by web pages: in online purchase processes, for personalization or registration, so as not to force the  user to have to constantly enter their password.

Depending on its purpose:

  • Strictly necessary: such as, for example, those that serve for correct navigation or those that allow payment for goods or services requested by the user or those that serve to ensure that the content of the web page is loaded efficiently.

  • Analysis: they allow the monitoring and analysis of the behavior of the users of the websites to which they are linked. They serve to prepare access statistics and browsing profiles of users, applications and platforms in order to introduce improvements based on the analysis of the usage data made by users of the service.

  • Techniques: they are necessary to control traffic and data communication, carry out the purchase process of an order, register for an event, use security elements while browsing, store content for subsequent dissemination of videos or sounds, or even to share content on social networks.

  • Personalization: they look for a series of criteria in the user's terminal such as the type of browser, regional configuration, language...

  • Advertising  comportamental: they store information on the behavior of users, obtained through the observation of their browsing habits, in order to develop a complete profile of each one and thus be able to personalize the information that it is provided.

Cookies used:







Differentiate sessions between users.



Identify accesses, and contrast them with possible blacklists and thus to avoid spam.



Check if the user has Javascript enabled.



Manage the appearance of the cookie use message to those users who visit the web page for the first time.


From third parties:




_utma, _utmb, _utmc, _utmz, _ga, _gat, _gid, _gads, Conversion, exchange_uid, _Secure-3PAPISID, NID, SID, DSID, SIDCC, HSID, SSID, SAPISID, APISID, CONSENT, NID, OTZFLC, AID, TAID.

Statistical and advertising analysis

Cookies Google Analytics for the statistical control and behavior of accesses and users and for the management of Google Adwords campaigns, and Google reCaptcha to avoid user impersonation.

Management of the use, rejection or configuration of cookies

The information necessary to manage cookies in your browser is presented below:

  • Internet Explorer: Tools -> Internet Options -> Privacy -> Settings.

[For more information, you can consult Microsoft support or the browser's Help.]

  • Firefox: Tools -> Options -> Privacy -> History -> Custom Settings.

[For more information, you can consult Mozilla support or the browser's Help.]

  • Chrome: Settings -> Show advanced options -> Privacy -> Content settings.

[For more information, you can consult Google support or the browser's Help.]

  • Safari: Preferences -> Security.

[For more information, you can consult Apple support or the browser's Help.]

Update of our cookie policy

It is possible that Master Makers, based on legislative or regulatory requirements, or with the purpose of adapting this policy to the instructions issued by the Spanish Agency for Data Protection, modify this page; For this reason, we advise you to visit this space periodically.

If you have any questions about this Cookies Policy, you can contact us by sending an email to

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