What are Cookies?
In general, cookies are used to retain user preferences, store information for things like shopping baskets, and provide anonymised tracking data to third party applications like Google Analytics. When you visit a Web site, that site’s computer asks your computer for permission to store this file in a part of your hard drive specifically designated for cookies.
Each Web site can send its own cookie to your browser if your browser’s preferences allow it, but (to protect your privacy) your browser only permits a Web site to access the cookies it has already sent to you, not the cookies sent to you by other sites. A cookie cannot retrieve any other data from your hard drive or pass on computer viruses.
Google Analytics Opt-Out
If you wish to opt-out from your data being used by Google Analytics, download and install the add-on for your web browser Here.
The Google Analytics opt-out add-on is designed to be compatible with Chrome, Internet Explorer 11, Safari, Firefox and Opera. In order to function, the opt-out add-on must be able to load and execute properly on your browser. For Internet Explorer, 3rd-party cookies must be enabled. Learn more about the opt-out and how to properly install the browser add-on Here.
For people who blog, there are better options to remove yourself from your own Google Analytics data– because with the above approach when you visit someone’s site they won’t see it in their own analytics.
These Google Analytics opt-outs are only on the web and not available as Android smartphone apps at this stage, meaning you’ll need to pick and choose your apps carefully. This article explains How to Keep Google from Collecting Data on your Smartphone.