Cookies policy

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What is a cookie?

Cookies are files downloaded on terminals (computers, smart phones, tablets) when users visit specific websites. Cookies are stored on the terminal’s memory and enable information recovery and storage on many aspects, such as the users’ habits, the websites they visit, the connection time, the operability of the website, the existence of technical problems, etc.
Depending on the information that the cookies contain and the way they are used in the terminal, they can permit the identification of a specific user.

What types of cookies exist?

There are several types of cookies according to different criteria:

  • According to their ownership:

    First-party cookies. They belong to Madrid Subterra.
    Third-party cookies. They belong to a third party, not Madrid Subterra, which will treat the information once it is gathered.

  • According to their use:

    Technical or personalization cookies. These cookies are used to improve the service, locate incidents, identify the user, etc.
    Analysis or advertising cookies. They are used to analyse information about navigation and offer general and personalised advertising.

What are cookies used for?

Cookies are used to offer personalised services and/or advertising, to analyse the system operation, recognise the users when they access a website, locate incidents or problems that may appear and solve them in the least possible time. Cookies can also analyse and measure the use and the activity of a website.

Do I need to give my consent to set up a cookie?

It isn’t required to give one’s consent to set up technical cookies, or those needed to provide a service to the information society that the target user specifically requests.

To set up the rest of the cookies, consent of the data subjects is required. It can be requested in different ways. Madrid Subterra will provide their consent if the user keeps using the website, accepting the fact that it can be revoked and the cookies can be deactivated.

What cookies are currently used by Madrid Subterra?

Analysis cookies: These cookies allow us and third-parties to quantify the number of users and be able to measure and analyse statistically how users apply the offered service. To do so, we analyse the navigation of our website with the aim of improving our product and service offer.
The Analysis cookies we use are the following ones:
“Google cookies”: The information we get is treated by Madrid Subterra and the third-party Google Ireland Limited.

The companies mentioned analyse the web page visitors and may use this data to improve their own services and offer services to other companies.
You can find out more about this matter in the corresponding links.

These tools don’t take information from users’ names or surnames, nor from the post code where they connect to the Internet. The information comes from different sources: the number of times they visit a website, the language used, the social network where our news are published, the city linked to the IP address from which users access the website, the number of visitors to our website, the frequency, timing and recurrence of these visits, the navigator, the software and the terminal used to access the website.

We use this information to improve our website, discover new needs and consider the best possible improvements in order to offer a better service to the existing users.

How can I deactivate the cookies?

Most of the navigators include information on how to adjust one’s navigator so as not to accept cookies, to receive a notification every time the user receives a new cookie and how to deactivate them. To define and control de use of your information, you can configure your terminal’s navigator in the most convenient way according to your needs.

In any case, note that deactivating the technical and/or operational cookies may lower the quality of the website and it may be harder to identify users.

In the links below there is more information on the different navigators available:


This site uses cookies to enhance your experience. By continuing to the site you accept their use. More info in our cookies policy.     ACCEPT