Cookies policy

NOTE: This Policy is an integral part of the Privacy Policy.

What are cookies?

Cookies are small text files that the Website you are visiting stores on your computer, phone or other device, with information about the navigation you do on this website. As they provide information to the Website’s owners, they are widely used to ensure correct and efficient functioning of the Website. Among other uses, cookies allow us to store and recover information about your browsing habits and the computer you are using. Based upon the information the cookies contain and the way your computer is being used, they allow the user to be recognized and identified in order to improve your browsing experience and provide the services you have requested.

Cookies provide information about the use of a Website. The main purpose of our cookies is to improve your experience on our website. For example, cookies help us to identify you and remember your preferences while you are browsing. The information collected in the cookies also allows us to improve our website by analyzing the routes users use to access our Website.

Types of cookies used by this website

When visiting our Website, we collect information through different types of cookies:

Technical cookies:

These cookies are necessary for the website to function and cannot be disabled in our systems. These cookies do not store any personally identifiable information.

Cookies subgroup Name Description Expiration Party
Sacyr iChallenges GiSession Generates a unique ID for each visitor, used to distinguish sessions. 1 month Primary
Sacyr iChallenges GiU Used to distinguish users who are logged in from those who are not. 1 month Primary
Sacyr iChallenges ws_u Generates a unique ID to distinguish users in analytics. 1 month Primary
Analytical Cookies:

These cookies allow us to count visits and sources of circulation in order to measure and improve the performance of our site. They help us know which pages are the most or least popular, and see how many people visit the site. All information collected by these cookies is aggregated and therefore anonymous.

Cookies subgroup Name Description Expiration Party
Google _ga It is used to distinguish users. 50 months Third
Google _gid It is used to distinguish users. 24 hours Third
Google _gat It is used to limit the percentage of requests. If you have implemented Google Analytics via Google Tag Manager 1 minute Third
Advertising cookies:

These cookies may be site-wide, placed by our advertising partners. These businesses may use them to create a profile of your interests and show you relevant advertisements on other sites. They do not store personal information directly, but are based on the unique identification of your browser and internet access device. If you do not allow these cookies, you will have less targeted advertising.

Cookies subgroup Name Description Expiration Party
Youtube test_cookie This cookie is set by DoubleClick (which is owned by Google) to determine whether the website visitor's browser supports cookies. a few seconds Third
Youtube VISITOR_INFO1_LIVE This cookie is set by Youtube to track user preferences for Youtube videos embedded on sites; it can also determine whether the website visitor is using the new or old version of the Youtube interface. 6 months Third
Youtube CONSENT This cookie holds information about how the end user uses the website and any advertising. 17 years Third
Control and management of cookies:

At any time you can retract the consent to the installation of cookies that you have given by deleting the cookies through the cookie control panel that you will find on our website, along with the above indications or by installing a rejection system in your web browser.

Depending on the specific browser being used, the procedure for rejecting and deleting cookies will be one of the following:

International data transfer

The third-party cookies used on this website belong to American companies such as Google, Facebook, Microsoft and Click Dimensions. Therefore, they are located outside the European Economic Area. All of them ensure that they comply with European privacy standards and have signed the appropriate standard clauses approved by the European Commission.

Exercises of rights and processing of personal data

The data controller is Sacyr, S.A., with address at C/ Condesa de Venadito, 7, 28027 Madrid.

Sacyr has a Data Protection Officer. If you would like more information on how we use cookies, please send an e-mail to The supervisory authority in this area is the Spanish Data Protection Agency.

You can also consult additional information on the processing of your information, in particular on your rights (of access, rectification, portability, opposition, erasure, limitation and revocation of consent) in the web privacy policy.

Updates and changes to the Cookie Policy

The Cookie Policy may be updated, so we recommend that you review it periodically so that you are properly informed about how and what we use cookies for.

You can contact the owner of this website about cookies at