Usage of cookies and other technologies

In this policy we use the term “Cookies” to refer to cookies and other similar technologies.

A cookie is a small text file that a website asks to be stored on the device of the user who visits it. These files are submitted to the server on each future request and allow to remember actions and preferences for a period of time to avoid the visitor having to make the same choices again.

We can classify the cookies according to different criteria:

  • Who manages them?


    These cookies are placed on the device directly by the website you are visiting.


    These cookies are stored on the device not by the site you are visiting but by a third party (e.g. a service provider).

  • How long do they remain?


    These cookies are temporary and expire when the session ends (or when you close the browser).


    These cookies remain on the device after the session is over until the browser deletes them for expiration (when these cookies are installed, they have an expiration date associated with them) or you delete them.

  • What are they used for?


    They are essential to be able to navigate the website and use its features.

    Example: access control to secure areas of the site.


    Remember selections you've made in the past so you don't have to ask again.

    Example: the language choice or whether to show the light or dark theme.


    Collect information about the use of the website in order to improve it. This information is aggregated in such a way that individual visitors cannot be identified.

    Example: number of visits to a page or the links that have been activated.


    Allows the management of advertising spaces and optimisation according to the language or information consulted.

    Example: displaying information related to the most visited articles.

Cookies can be managed or removed at any time and most browsers allow you to disable them. However, it will be necessary to re-set up the preferences each time the site is accessed.

Besides cookies websites can store information on the device using other techniques:

  • HTML5’s local storage (local storage) and session storage (session storage) provide an area that can be used to store information that, unlike cookies, is not sent to the server in subsequent requests.

    They serve to store data that are handled in the browser itself and allow the offline use of some websites (to behave as applications) or to improve the response (storing information that will not be asked to the server), among other multiple utilities.

    The local storage is permanent while the session storage is deleted at the end of the browsing session. Being browser-managed storage, you have options to control and delete this information and even block its use at the site level.

  • Some browser plug-ins, such as Adobe Flash Player or Microsoft Silverlight used to render embedded content in web pages, provide storage on the user’s device (Flash Local Shared Objects and Isolated Objects, respectively). This storage can be used to store files on the device almost like cookies.

    As they are proprietary technologies, it is necessary to review the control options provided by each one.

What is a Web Beacon (Web Bug or Pixel Tag)?

Web Beacons are invisible images embedded in the content of a web page. To make them invisible they have a tiny size (1x1 pixel, so they are sometimes called Pixel GIF) and are often transparent.

By activating the image, it is possible to collect information about the client that has been accessed (IP, browser…) in a very similar way as cookies. Unlike cookies, for the web browser, they remain normal images and therefore cannot be easily distinguished or blocked.

What is Do Not Track?

Certain web browsers may allow you to enable a Do Not Track option that sends signals to the websites you visit indicating that you do not want your online activities tracked.

This is different from blocking cookies as browsers with the Do Not Track option selected may still accept cookies.

What “cookies” are used?

This site minimizes the use of cookies and does not use Web Beacons or other technologies. The Do Not Track request is respected.

This is an inventory of the cookies used on this site.

In order to browse this website it is not necessary to approve the installation of any of these cookies.

You can safely disable them directly in your browser settings.


  • Cookie Consent

    Stores the selection made in the consent banner of cookies
    Owner: (First-party)
    Persistent (7 days)
  • Theme

    Stores the choice of the site's theme (automatic, light or dark mode)
    Owner: (First-party)
    Persistent (local storage)


There are no other cookie used by this site directly, but any of the services that host its contents can. It is worth reviewing the privacy policies of each of them.

Also, some of our pages display content from external providers. To view this third-party content, you first have to accept their specific terms and conditions. This includes their cookie policies, which we have no control over. But if you do not view this content, no third-party cookies are installed on your device.