A “cookie” is a tiny data file that we transfer onto your computer, mobile phone, or any other device that you use to access the Wikimedia Sites, generally used for authentication and occasionally tracking. Every cookie expires after a certain period of time, but that period varies depending on what the cookie is used for and how your browser is configured. A “session” cookie is one that generally expires when you close your web browser or mobile application. A “persistent” cookie is one that remains in your device, even after you close your browser or mobile application. A persistent cookie expires according to the duration set by us (or when you delete it manually). Learn more on Wikipedia.
请勿跟踪（Do Not Track）
The “global positioning system” or “GPS” is a space-based satellite navigation system that provides location and time information on the location of devices designed to receive their signals such as car navigation systems or cell phones. Learn more on Wikipedia.
An Internet Protocol Address (or “IP address”) is a unique number assigned to a particular device connected to the Internet. Your IP address may not always be the same on a particular device, depending on a number of variables such as your use of a proxy server or a corporate network. Generally, however, IP addresses are assigned according to the geographical location of your device and your internet service provider, and might be usable to approximate your real-life location. Learn more on Wikipedia.
“Local Storage” (also known as "Web Storage") is a way for a website to collect and store information "locally" (i.e. on the user's device rather than on the website’s server) and then later retrieve it again. For example, by using LocalStorage, a user’s visits can be stored on their own computer, counted, and then given to us. This allow us to receive important use statistics (the count of visits), while the specific information about when each individual visit occurred would never be transmitted to us.