Cookies are essential to the proper functioning of the Internet, as they offer countless benefits to the delivery of interactive services, making it easy for you to browse and use our website. Keep in mind that cookies cannot harm your computer, and that, in return, when you enable them, they help us identify and solve errors.

What to do if you don’t want cookies to be set

Some people find the idea of a website storing information on their computer or mobile device intrusive, particularly when this information is stored and used by a third party without them knowing. If you prefer, it is possible to block some or all cookies, or even to delete cookies that have already been set; but you need to be aware that you might lose some functions of that website.

The following information will help you understand the different types of cookies:

First-Party Cookies

First-party cookies are set by the website you are visiting, and they can only be read by that site.

Third-Party Cookies

Third-party cookies are set by a different organization to the owner of the website you are visiting. For example, the website might use a third-party analytics company that sets their own cookie to perform this service (e.g., Google). The website you are visiting may also contain content embedded from a third-party site, and these sites may set their own cookies.

More significantly, a website might use a third-party advertising network to deliver targeted advertising on their website. These may also have the capability to track your browsing across different sites. Osclass does not track your browsing after you leave the site. We, our third-party service providers, advertisers, advertising networks and platforms, agencies, or our partners also may use cookies to manage and measure the performance of advertisements displayed on or delivered by or through the Osclass networks and/or other networks or sites. This also helps us, our service providers and partners provide more relevant content and advertising.

We, our third-party service providers, advertisers, advertising networks and platforms, agencies or our partners may also use “web beacons” or clear .gifs, or similar technologies, which are small pieces of code placed on a web page to monitor the behavior and collect data about the visitors viewing a web page. For example, web beacons may be used to count the users who visit a web page or to deliver a cookie to the browser of a visitor viewing that page.

Osclass sites may also include elements that set cookies on behalf of a third party (e.g., a “like” button from Facebook or a “tweet” button from Twitter).

We also use the services of reputable third parties to provide us with data collection, reporting, ad response measurement, and site analytics, as well as to assist with delivery of relevant marketing messages and advertisements. These third parties may view, edit or set their own cookies. We, our third-party service providers, advertisers, advertising networks and platforms, agencies and/or partners may also place web beacons for these third parties. The use of these technologies by these third parties is subject to their own privacy policies and is not covered by this privacy statement.

Session Cookies

Session Cookies are stored only temporarily during a browsing session and are deleted from the user’s device when the browser is closed.

Persistent Cookies

This type of cookie is saved on your computer and is not deleted when the browser is closed. Persistent cookies are used where we need to know who you are for more than one browsing session. For example, we use this type of cookie to store your preferences so that they are remembered for the next visit. You can delete a persistent cookie by selecting the delete options in your browsers.

Cookies used on Osclass sites

Osclass Cookie

Name: osclass

Purpose: we use cookies for the “Remember me” feature for users and admins

Expiration: 1969-12-31T23:59:59.000Z

SiftScience Cookie

Name: _ssid

Purpose: SiftScience uses cookies which gather data that help prevent fraud at online stores.


Google Analytics Cookie

Names: _utma _utmb _utmc _utmv _utmx _utmxx _utmz _qca

Purpose: Osclass uses Google Analytics in their website in order to track activity. Google Analytics cookies collect standard log information and data about visitors’ habits in an anonymous way. More information:

Expiration: 2 years 30 minutes session 6 months 2 years

Double Click Cookie

Name: _channelID _DSID _IDE _id

Purpose: DoubleClick uses Google’s cookies in order to enhance advertising. These cookies are commonly used to direct ads based on relevant content for a given user, improve campaigns’ performance reports, and avoid showing ads which users have already seen.

Expiration: 6 months

Facebook Cookie

Names: _ga _act _c_user _csm _datr _fr _i_user _lu _p _presence _s _xs

Purposes: Facebook cookies allow you to discover friends from this social network who also use Osclass.

Expiration: 6 months

Adwords Cookie

Names: _a _adsuserlocale _CMS _SAG _utma _utmb _utmc _utmt _utmz _ga _gat

Purpose: We use this cookie in order to offer you Osclass advertisements once you leave our website.

Cookies Management

Many browsers allow us to enable a private mode by which cookies are always deleted after your visit. Depending on each browser, this private mode has different names. Here is a list of the most common browsers and their different names for this “private mode”:

Internet Explorer 9: InPrivate

Safari 2: Navegación Privada

Opera 10.5 y superior: Navegación Privada

FireFox 3.5 y superior: Navegación Privada

Google Chrome 10 y superior: Incognito