Declaración sobre cookies

This page is a translated version of the page Cookie statement and the translation is 40% complete.

Cómo se menciona en nuestra política de privacidad, Wikimedia cree firmemente en los valores de privacidad y transparencia. Con ese fin hemos creado esta «Declaración sobre cookies» como una guía de referencia clara sobre el uso de cookies en los sitios de Wikimedia. Esta «Declaración sobre cookies» explica como usamos estas y otras tecnologías de almacenamiento local de datos, como son usadas las cookies de terceros en los sitios de Wikimedia y como puede administrar sus opciones para el manejo de cookies. Para obtener más información sobre nuestras prácticas de privacidad, puede visitar nuestra política de privacidad.

La Fundación Wikimedia, la organización sin fines de lucro que alberga los sitios en internet de Wikimedia, registra activamente varios tipos de información con una variedad de tecnologías comúnmente utilizadas. Estas generalmente incluyen pixeles de seguimiento, JavaScript, y una variedad de tecnologías par almacenar datos de manera local, como cookies y almacenamiento local.

¿Qué es una «cookie»?

Una cookie es un archivo de datos diminuto que transferimos a su computador, teléfono móvil o cualquier otro dispositivo que utilice para acceder a los sitios de Wikimedia, normalmente para ejecutar funciones relacionadas al manejo de sesiones y seguimiento. Todas las cookies expiran después de un periodo de tiempo determinado, pero la extensión del mismo es diferente dependiendo del propósito de la cookie y de la configuración de su navegador.

Una cookie de sesión normalmente expira cuando cierra su navegador de internet o su aplicación móvil. Una cookie persistente permanece en su dispositivo, incluso después de cerrar su navegador o aplicación móvil. Estas últimas expiran luego de una duración determinada por nosotros o cuando usted las borra manualmente. Puede aprender más en Wikipedia.

Puede eliminar o desactivar las cookies usando las opciones de configuración de su navegador. Para obtener más información sobre la forma de administrar sus cookies, puede consultar la sección 3 de esta «Declaración sobre cookies»

Para obtener más información sobre este y otros términos importantes que pueden ser relevantes puede leer el glosario de nuestra política de privacidad.

¿Qué tipos de cookies usa Wikimedia?

Cookies are not required in order to read or edit the Wikimedia Sites. We use the information we receive from cookies and other locally-stored data technologies to make your experience with the Wikimedia Sites safer and better, to gain a greater understanding of user preferences and interactions with the Wikimedia Sites, and to generally improve our services. Cookies are required in order to login and for your edits to be associated to a user account; without cookies, your edits will be anonymous and unassociated with an account.

We use cookies, JavaScript, tracking pixels, and other locally-stored data technologies to accomplish different purposes. Below is a list of the categories of cookies we use and what they are used for.


These cookies help the Wikimedia Sites work and are essential in order to enable you to move around the Wikimedia site and use their features. These cookies are useful for remembering your username in the login field, maintaining your session and remembering previous actions, keeping you logged in (if selected), and more.

Here are a few examples:

Nombre Caduca Categoría ¿Qué hace?

{$wgCookiePrefix}* Token

365 days, if the user chooses ‘Keep me logged in’. Otherwise omitted. Funcionalidad Provides ‘Keep me logged in’ functionality.
{$wgCookiePrefix}* UserID, UserName 365 days, if the user chooses ‘Keep me logged in’. Otherwise 30 days. Funcionalidad Helps identify you to the wiki, and keeps you logged in.
loginnotify_prevlogins 180 días Funcionalidad

Verifies that you are logging in from a known device.

This affects the threshold for how many unsuccessful login attempts trigger a notification to the user.


{$wgCookiePrefix}* Session

When user exits browser Funcionalidad Manage sessions. Provides functionality such as logging in to Wikimedia Projects.


These cookies store your preferences, so that they can be remembered the next time you use the Wikimedia Sites, for a more customized experience.  These cookies are useful for recognizing and maintaining your language preference, remembering changes you have made to text size, fonts and other display preferences, so we can provide you with the look and feel that you want, and more.  

Here are a few examples:

Nombre Caduca Categoría ¿Qué hace?
stopMobileRedirect 30 días Preferences Tells us not to redirect to the mobile site if you don’t like that.
uls-preferences Local Storage, not a cookie Preferences Allows you to set preferences for the Universal Language Selector functionality.
hidewatchlistmessage- [watchlistMessageId]

● where watchlistMessageld is the Id of the message being hidden

28 días Preferences Allows a user to hide a watchlist message.
userFontSize Local Storage, not a cookie Preferences Keeps track of your preferred font size on the mobile site.
preferredEditor Local Storage, not a cookie Preferences Keeps track of your preferred editor on the mobile site.

Performance and Analysis:

These cookies count the number of visitors and collect information about how you use the Wikimedia Sites. This allows us to better understand your user experience on the Wikimedia Sites and helps us improve them for you and other users — for instance, by making sure users are finding what they need easily. Other examples include:

  • remembering pages visited, and actions taken on the Wikimedia sites so we can optimize the pages;
  • remembering if users get error messages from web pages;
  • storing your most recently read articles directly on your device, so they can be retrieved quickly;
  • remembering the topics searched so that we can optimize the search results we deliver to you;
  • remembering the list of articles you are following on your watchlist so that we can recommend similar articles that you may be interested in.

Here are a few examples:

Nombre Caduca Categoría ¿Qué hace?
centralnotice_bucket 7 días Performance and Analysis Helps us understand the effectiveness of notices provided to users through the CentralNotice extension. For more details, see
ext.popups.core.previewCount Local Storage, not a cookie Performance and Analysis Helps us understand the effectiveness of Hovercards.
WMF-Last-Access 30 días Performance and Analysis Helps us calculate Unique devices accessing our site. See:


We will never use third-party cookies on our wikis unless we get your permission to do so. These cookies would allow us to render services provided by third parties, such as “like” and “share” buttons. When a third party provides these kinds of services, they may require the use of a cookie in order to provide their services.

If you ever come across a third-party cookie transferred to your device during your access of the Wikimedia wiki sites, where you did not take any action to authorize the use and/or transfer of that cookie  (such as one that may have been mistakenly placed by another user or administrator), please report that cookie to us at privacy

A note about Wikimedia Foundation non-wiki sites:

Some non-wiki Wikimedia Foundation sites are hosted by a third-party service provider.

Sites hosted by WordPress VIP may have the WordPress Stats module enabled. Stats is a service that allows us to understand how many visitors we get to our WordPress-hosted non-wiki sites, their location by country, and which pages, posts and links are the most popular. Only the Wikimedia Foundation and the service provider, Automattic/WordPress, have access to the raw Stats data, which is retained for a maximum of 30 days. For more information about Stats, see WordPress’ support page on the module.

Sites hosted by Civilized Discourse Construction Kit, Inc., known as Discourse forums, use cookies for functionality purposes and to store preferences. Only the Wikimedia Foundation and the service provider have access to the raw data. For more information about the cookies and their retention periods, see Discourse’s information about cookies. Please note that the Wikimedia Foundation has not configured its Discourse forums to use Google Analytics, serve advertisements, or process donations; Discourse cookies related to those purposes are not used in our Sites.

¿Qué puedo hacer con las cookies?

While this is not a comprehensive list, below are some of the things that you can do to limit use of cookies and other locally-stored data technologies on your device. While cookies and other locally-stored data technologies may not be necessary to use our sites, some features may not function properly if you disable them.

Usted puede:

  • eliminar o deshabilitar datos específicos almacenados localmente en la configuración de su navegador;
  • utilizar un navegador que pueda bloquear las cookies de terceros; o
  • instalar un complemento para bloquear datos almacenados localmente, si hay alguno disponible.

Turning off the browser’s cookies will prevent tracking pixels from tracking your specific activity. A tracking pixel may still record an anonymous visit from your IP address, but unique information will not be recorded. If you do not want to receive tracking pixels, you will need to disable HTML images in your browser-based email client, and that may affect your ability to view images in other emails that you receive.

¿Dónde puedo encontrar más información?

Puede leer nuestra Privacy Policy para obtener más información. Si tiene preguntas adicionales puede contactarnos al correo privacy


Please note that in the event of any differences in meaning or interpretation between the original English version of this document and a translation, the original English version takes precedence.