A cookie is a file that is downloaded to the computer / smartphone / tablet user to access certain web pages to store and retrieve information about the navigation is made from that computer.
Technically , cookies are arbitrary pieces of data defined by the web server and sent to the browser . The browser returns to the server unchanged , reflecting a state ( memory of previous events) in the HTTP transactions that otherwise would be independent of the state.
Without cookies, each request for a web page or a component of a site would be an isolated event , unrelated to other requests from other pages on the same site . But returning a cookie to the web server , the browser provides the server a means to relate the application of the current page with requests for previous pages. Besides being defined by a web server, cookies can also be defined by a script in a language like JavaScript if it is supported and enabled on the web browser.
Cookies specifications suggest that browsers should support a minimum number of cookies or a minimum amount of memory to store . Specifically , it is expected that a browser is capable of storing at least 300 cookies 4 kilobytes each, and at least 20 cookies per server or domain.
The server sets the cookie can specify a deletion date , in which case the cookie will be removed on that date. A shopping site might want to help potential customers remember the things he had in his shopping cart even if they close the browser without making a purchase and return later to avoid having to search for new products . In that case , the server would create cookie deletion date as desired by the designer of the website. If a deletion date is not set, the cookie is deleted when the user closes their browser. Therefore, set a date of deletion is a way to make the cookie survive across sessions. For this reason, dated erase cookies are called persistent.
To learn more about cookies, we suggest that you can access the following link: http://www.iabspain.net/privacidadeninternet/usuario .
In this website the following cookies that are detailed in the following table
| Cookies | Treated Information | End |
| Strictly necessary | User session, registration details, reservations. | Managing and maintaining high user session, personalize navigation, load balancing |
| Analytics Google Analytics | Websites visited, frequency, number and frequency of visits, time spent browsing, searches performed, accessed links, browser used, operator providing the service, location linked to the IP address | Measure and analyze user navigation, monitoring and analysis of user behavior, development of navigation anonymous user profiles, make improvements based on the analysis of usage data users do |
| Google Adwords | IP address, searches performed, accessed links and accessed ads. | Show products that best suits the user, segmenting the target audience, performance measurement, flexible budgets and detection of new markets. |
Following will describe the cookies of Google Analytics
| Cookie name | Cookie duration | Cookie Use |
| _utma | 2 years | Its used to difference between users and sessions. |
| _utmb | 10 minutes since creation or modification | Its used to know if its a new session or visit. |
| _utmc | Until end of session | Its used to give facilities to urchin.js |
| _utmz | 6 months | Save the referer of trafic or campaign to explain from where the user arrive. |
| _utmt | Until end of session | Its used to define the type of user request. Its used to make statics of use at pages. |
Following shows a description of website cookies.
| Cookie name | Cookie duration | Cookie Use |
| Cookie_alerta | Until end of session. | Its used to know if user has read the policies of cookies. |
The information collected through these cookies , relative to the user's computer may be combined with your personal data only if you are registered on this site . The user may , at any time , choose which cookies you want to work on this website by and can disable Cookies:
• Browser settings, for example:
• Systems regarding specific opt -out cookie in question ( these systems can lead to install on your computer a cookie " reject " to work off his choice ) or
• other third-party tools available online , allowing users to detect cookies on each Web site you visit and deactivation manage (eg Ghostery : http://www.ghostery.com/privacy-statement, http://www.ghostery.com/faq ).
We may update the Policy Cookies from our Site, and we recommend you review this policy whenever you visit our Web site in order to be properly informed about how and why we use cookies.