Cookie policy

  1. General Information

The following is general information offered to the User explaining what cookies are and what types of cookies exist.

What are cookies?

Cookies and other similar devices – such as pixels, web bugs, etc. – are text or image files that are installed on the User’s browser when he/she accesses an online service.

Cookies allow information related to the User and his/her browser, devices and activity on the service to which he/she is connecting to be stored and recovered, among other things.

What types of cookies exist?

There are many types of cookies. The following offers the User some of their classifications, but this does not necessarily mean that this service uses all of these cookie types:

a) Depending on the entity managing cookies:

– Own cookies: These are sent to the user’s device or terminal from the device or domain pertaining to the owner of a service, and they are managed by said owner.

– Third-party cookies: These are sent to the user’s device or terminal from a device or domain that is not managed by the owner of a service, but rather by a third party who will process the information obtained via cookies.

b) Depending on the storage time:

– Session cookies: These gather and store data when the user accesses a service and they cease to function once the user leaves the service.

– Persistent cookies: These have a specific duration set by the processing controller. The storage time may range from a few minutes to several years. They are used to save and recover certain parameters every time the user visits a service.

c) Depending on their purpose:

– Technical cookies: These are essential and strictly necessary to ensure the correct functioning of the service and to use the different options or services offered by their owners through the service. For example, some serve to maintain the session, to manage the response time, to enable performance or option assessment, to use security elements, etc.

– Personalization cookies: These allow the user to specify or personalize some features of a service. For example, define the language, regional configuration or browser type.

– Analytics cookies: These allow the number of unique visitors to be counted and an analysis to be performed regarding use of a service in order to measure interest in the service or certain areas of it. For example, by using an analytics cookie the geographical area from where the greatest percentages of users connect, which product or service is most popular, etc. can be controlled.

– Advertising cookies: These enable management of the advertising spaces on a service.

– Behavioral advertising cookies: These enable management of a service’s advertising spaces. The function of these cookies is to store behavioral information on users of a service to subsequently show personalized advertising.

d) Other technologies:

– Pixels, web bugs or trackers: These are also known as tracking pixels, pixel tags and conversion pixels, and web beacons. They are tiny, transparent images of 1×1 pixels that are inserted in a service in order to measure activity. Once the page is loaded on a browser, the image will load and this data may be measured. In general, tracking pixels allow a certain user’s IP address to be traced on an online service.

– HTML5 storage: This involves making the most of HTML5 technology capacities to store on the user’s browser certain parameters that may be used to identify his/her browser.

– Local shared objects: Also known as “flash cookies”, they involve storing information without cookies on the user’s device, making use of Adobe Flash Player technology.

– Tags: This is an HTTP protocol mechanism that allows the cache a user saves on his/her browser to be checked. This technology is mainly used to save bandwidth and prevent contents from being downloaded in duplicate. However, it may also be used to recognize the user’s browser.

– Canvas fingerprinting: This involves uniquely identifying the user’s browser by making use of standard HTML5 web technology to identify the user’s device.

– Source detection: This technique involves identifying the user’s device’s source settings to obtain a unique identification for the device.

– Browser cache: As the name indicates, this technique involves storing information on the browser’s cache.

– WebGL: This technique enables 3D images to be rendered in modern browsers in order to obtain a unique identification for the device owing to the different configurations of each one.

2. Specific Information

Who is responsible for this service?

This Service is owned by CENTRO DE ESTUDIOS GRESOL, S.L.U., with tax identification number (N.I.F.) B08556995, a registered office at Carretera de Sabadell a Matadepera, Km.6, 08227, Terrassa (Barcelona) and registered in the Trade Registry of Barcelona in Volume 24129, Page 16, Sheet B-64775 (hereinafter, “GRESOL”).

What technologies do we use?

Specifically, this online service uses cookies and other similar devices for the following purposes:

PurposeTermOrigin/ProviderMore info
Technical1 yearOwnN/A
Analytics1 yearGoogle (*)Google Link
Advertising30-90 daysGoogle AdsLink Google Ads
AdvertisingSessionFacebook AdsLink Facebook
Pixels/trackersn/aGoogle AdsLink Google Ads
Pixels/trackersn/aFacebookLink Facebook

The information obtained via these cookies is stored on the servers of providers that are not located in the European Union or countries with equivalent data protection legislation.(*) Providers not located in the European Union or countries with equivalent data protection legislation

However, these providers offer the following suitable guarantees in relation to data protection:

  • Google: It adheres to the Privacy Shield, and it also has authorization from the Spanish Data Protection Agency (AEPD) to transfer personal data to the United States of America.

Furthermore, Google uses the Web Choices tool, through which you may disable the use of its cookies:

Finally, you can prevent Google Analytics cookies from being installed by using the following extension for your browser.

How can I disable or delete cookies?

By access the Service for the first time, the User will see a cookies notice informing him/her of how he/she may grant or refuse to grant his/her consent.

However, the User must bear in mind that if he/she rejects or deletes cookies, we will not be able to maintain his/her preferences and some features will not be operative, meaning we will not be able to offer him/her personalized services and every time he/she returns to use the Service he/she will appear as a new user from whom authorization for the use of cookies will be requested.If the User grants his/her consent, he/she may disable or delete these cookies through his/her browser’s settings on his/her device or terminal at any time.

The following are links on which the User will find information on how to disable cookies and similar devices on the main browsers:

How does the use of cookies affect protection of the User’s personal data?

The majority of cookies gather anonymous information, which does not allow us to discern the User’s identity, although some of the codes they include serve to single out or individualize the browser of the device used, with personal data protection regulations applicable. As such, you are hereby informed that the information obtained via cookies will be processed for the purposes indicated in this Cookies Policy. In addition, this information will also be processed by the companies that provide cookies for the purpose indicated in their respective privacy policies.

However, bearing in mind that these codes do not allow the User to be identified, rights of access, rectification, suppression, opposition, limitation and portability, as recognized in data protection regulations, will not be applicable unless the User is able to provide additional information that allows his/her identity to be linked with the identification codes of their cookies.

If he/she believes his/her right to data protection has been violated, the User may file a claim with the Spanish Data Protection Agency ( or GRESOL’S Data Protection Officer (

Further information

The User may ask us any questions related to the use of cookies that are not covered in this Cookies Policy by emailing