Google Web History (previously Google Search History) is a feature of Google Search and provided by Google, in which all search queries and results that a user clicks on are recorded. The feature is only available for users logged into a Google Account. The feature was renamed from Search History to Web History on April 19, 2007. A user's Web History is used to personalize search results with the help of Google Personalized Search and in Google Now.
References
Google Web History Wikipedia(Text) CC BY-SA