1. What is a cookie?
A 'cookie' is a data file written on an user's computer hard drive by a website that identifies it and allows it to remember it, customize your preferences or eliminate the need to fill out forms or data in future visits. It also allows a website or advertising companies to monitor the browsing pattern or behaviour of users.
Users can configure browsers to alert them with an alert for the existence of 'cookies' on the visited websites, or to directly prevent cookies from being installed on your hard disks.
2.- Types of Cookies
Own Cookies: These are the ones that are sent to your computer by the website itself.
A typical example could be a cookie that a portal sends to its users to know in which language they prefer to read their content. When you select that you want to read the contents in Spanish inside the portal this will send you a cookie with your preferences. From that moment, whenever you have that cookie installed, the portal will show you the information in the language you have previously selected.
Third party cookies: These are those sent by other websites.
We use them in trenes.com and we explain them in detail below, but in summary, when you visit our website, Google Analitics sends a cookie to you in order to identify and follow your navigation on our website. In this case, the cookie is not stored by us directly, it is performed by Google as a free service.
3.- Types of cookies according to the term that remain active
All cookies are stored on your computer with an expiration time. If these cookies expire when the browser is closed we are talking about session cookies, on the contrary, if these remain in operation, even when you have closed the browser, we are talking about permanent cookies.
For example, one use of a session cookie would be when shopping online. When you select a product to buy it you are sent a cookie. With this cookie on your computer, the web can read it and recognize that you want that product and add it in your basket when shopping online. Without this cookie you will not be able to differentiate it from the rest of the visitors. Once the process is complete the cookie is deleted from your computer.
An example of a permanent cookie: An online store that sees that you are interested in one of their products could send a cookie with that data 'this visitor is interested in my series of cameras of the brand Canon' and with that cookie installed it would show banners advertising that product in the following days.
4.- Types of cookies according to their purpose
According to their purpose we can distinguish the following cookies:
Technical Cookies: Generally sent by the site itself that facilitate the navigation through the portal. An example could be the social network Facebook. When you add your username and password, Facebook sends you a cookie to identify it from the rest of your visitors and show your personal information which is restricted to other users.
Personalization Cookies: These are the ones that save your preferences within the portal, for example your language.
Analysis Cookies: They are used to evaluate how users use the website. Data like what pages do they visit, how many seconds they stay in each section, etc ... These cookies are useful for improving the services that a portal gives based on how users interact with it.
Advertising Cookies: They are used to customize the advertising that a portal displays to its users based on the content of the website and the frequency at which the ads are displayed.
Behavioural Advertising Cookies: These cookies store the information of the users and their behaviour so that they can offer in the available advertising spaces information which might be relevant to the user.
5.- Our Cookies
trenes.com uses the system of cookies of Google Analytics (see legal information of the web)
Google Analytics, a web analytics service provided by Google, Inc., a Delaware company headquartered in 1600 Amphitheatre Parkway, Mountain View (California), CA 94043, United States ('Google').
Google Analytics uses 'cookies', which are text files located on your computer, to help the website analyse users' use of the website. The information generated by the cookie about your use of the website (including your IP address) will be directly transmitted and archived by Google on its servers in the United States.
Google will use this information on our behalf with the intention of following the track of your use of the website, compile reports of website activity and provide other services related to website activity and use of the Internet. Google may transfer such information to third parties when required to do so by law, or when such third parties process the information on Google’s behalf. Google will not associate your IP address with any other information that Google has.
You may refuse the use of cookies by selecting the appropriate settings on your browser as we explain below
By using this website you consent to the processing of information about You by Google in the manner and for the purposes indicated above.
The cookies that Analytics will send you are the following (general information provided by Google):
| Name | Description |
| __utma | It is used to distinguish users and sessions. The cookie is created when the javascript library executes and a ___utma cookie does not exist.The cookie is updated every time data is sent to Google Analytics. |
| __utmb | It is used to determine new sessions/visits. The cookie is created when the javascript library executes and no existing ___UTMB cookies exist. The cookie is updated every time data is sent to Google Analytics. |
| __utmc | It is not used in ga.js. Set for interoperability with urchin.js. Historically, this cookie operated in concert with the __utmb cookie to determine if the user was in a new session/visit. |
| __utmz | It records whether the visitor came from a search engine, a link or from no previous page. The cookie is created when the javascript library is run and updated every time the data is sent to Google Analytics. |
As explained, on this page, its duration adding a zero at the end will be only one session, so that the Analytics cookies will be deleted when you close your browser and therefore they will not be permanent cookies but session cookies.
6.-Use of Adsense Cookies
Google Policy here, explanation of Adsense cookies here.
Our ads use DoubleClick cookies, a system that guides the advertising of our web according to your preferences with what it manages to improve the efficiency of our portal and to be more useful at the advertising level for your interests.
Google, as a third party vendor, uses cookies to serve ads on this website. Users can disable the use of the DART cookie through the Google ad and by accessing the content network privacy policy.
Google uses associated advertising companies to run ads when users visit our website.
These companies may use the information they obtain from your visits to this and other websites (not including your name, address, email address or phone number) to provide you with ads about products and services that may be of interest to you.
7.How to configure your browser not to accept cookies from our website?
If you want to configure your browser so that it does not accept cookies, you can do so by following these links:
For more information about how to disable the use of cookies in Firefox click here
For more information about how to disable the use of cookies in Chrome click here
For more information about how to disable the use of cookies in Explorer click here
For more information about how to disable the use of cookies in Safari click here
For more information about how to disable the use of cookies in Opera click here
If you want to disable specific Analytics cookies you can do this by following this link
If you want to disable the Adsense cookies, you can do this by following this link