• Home
  • Cookie policy

Cookie policy

Construcciones y Auxiliar de Ferrocarriles, S.A. (hereinafter, CAF), hereby informs you that our website https://www.caf.net/ (hereinafter, the "Website") uses cookies to ensure smooth operation and to improve the quality of your browsing experience.

What are Cookies?

Cookies are widely used small files or devices that are installed in the user´s browser with the purpose of storing, recovering or updating data. They allow the website maintainer to determine the preferences of users when navigating through their website and personalise the services offered based on these preferences.

Please note that Cookies do not damage your computer or slow it down. We would also like to inform you that you can delete them at any time or, in some cases, reject them by configuring the browser software you use as outlined later in this policy.

CAF uses cookies to collect personal data about you. Accordingly, by means of its Website, CAF provides details relating to how your personal data is processed pursuant to Article 13 of the Data Protection Regulation (EU) 2016/679 (hereinafter, "GDPR") and Article 11 of the Organic Law 3/2018 on data protection and guarantee of digital rights (hereinafter, "LOPDGDD").

These features are designed to improve your browsing experience, remember you on future visits, save your preferences or allowing you to browse in a more efficient, faster and simpler way. Our specific uses of these technologies are described below.


What follows is a detailed list of the cookies we use on our Website, indicating whether they are our own (those that are sent to the user´s terminal equipment from a computer or domain managed by CAF and which provides the service requested by the user) or third party cookies (those that are sent to the user´s terminal equipment from a computer or domain that is not managed by CAF, but by another entity that processes the data obtained from the cookies), as well as their purpose.

Specifically, depending on the period of time they remain active, Cookies can be categorised as:

  • Session Cookies: These are cookies designed to collect and store data while the user accesses a website. They are typically used to store information that is only required to provide the services requested by the user on one occasion.
  • Cookies persistentes: Son un tipo de cookies en el que los datos siguen almacenados en el terminal y a los que se puede acceder y tratar durante un periodo definido por el responsable de la cookie, y que puede ir de unos minutos a varios años.

Also, depending on the purpose of the obtained data and who manages them, you may find the following cookies on our website:

- Technical Cookies

These are required for the correct functioning of a website by enabling basic functions such as site navigation and access to secure areas of the website. The website cannot function properly without these cookies.

PHPSESSID This cookie is a PHP SESSION identifier and is used to monitor and control the session and also ensures that its variables are saved on the web server. CAF One session
cc_cookie_accept This cookie allows for the user-set cookies settings to be remembered. CAF One year
cc_cookie_decline This cookie allows for the user-set cookies settings to be remembered. CAF One year

- Analytical Cookies

These are the cookies that enable the tracking and analysis of the behaviour of website users. The information collected is used to measure website activity and to create browsing profiles in order to make improvements based on the analysis of usage data.

_utma This records the date of the first and last time the user visited the website. Google Analytics 2 years
_utmb This records the time the user accesses the website. Google Analytics 30 minutes
_utmc Used for interoperability with the urchin.js tracking code. Google Analytics One session
_utmt Used to process the type of request made by the user. Google Analytics One session
_utmv Used to segment demographic data. Google Analytics One session
_utmz Stores the source of traffic or tracks a campaign to determine how the user reached the website. Google Analytics 6 months

- Behaviourally targeted advertising cookies:

These cookies store information on user behaviour obtained through ongoing monitoring of browsing habits, whereby it is possible to establish a specific profile in order to display advertising based on that profile. CAF does not currently use behaviourally targeted advertising cookies.

- Preference or personalisation cookies:

These are cookies that allow information to be remembered so that the user can access the service with certain characteristics that can differentiate their experience from that of other users. These may include: the language; the number of results to be displayed when the user performs a search; the appearance or content of the service depending on the type of browser the user uses to access the service; or the region from where the service is accessed, etc. CAF does not currently use preference or personalisation cookies.


If you want to delete cookies that are already stored on your computer, you can do this from your browser. To do this, go to the help menu of your browser which will instruct you on how to delete them.

For more information:


CAF may modify this Cookies Policy to adapt it to existing legislative or regulatory requirements, as well as to any instructions issued by the Spanish Data Protection Agency. Accordingly, we recommend that users regularly visit this page, to keep up to date on any changes made.

Should you require any further information on the use of cookies, please contact us at the following e-mail address: dpo@caf.net.


For further information on how personal data is processed, please consult our Privacy Policy.

This Website uses cookies processed by us or third-parties to enable the correct functioning of the Website and to carry out statistical analyses of the browsing habits of our visitors in order to improve the content of the Website and optimise the services offered through it. For this purpose, we process personal data, such as your browsing data. You can learn more about the cookies we use on the Website here. If you want all of our cookies to be installed, click on "ACCEPT COOKIES". Likewise, if you only want the cookies necessary for the operation of the website to be installed, click on "REJECT COOKIES". Finally, should you wish to configure your cookie preferences, click on "CONFIGURE COOKIES".