Google Web History stores all your searches – on various Google services including YouTube. On one hand, this is quite useful as it lets Google understand user interaction better, to get your results faster, and to give you customized results based on your web history. By default, it’s switched on from no matter where you search on Google.
It’s easy to turn off the history though.
But first, there are some policy changes which prompt this discussion on Google Search Web History.
To begin with, there have been quite a lot of policy changes in the way Google manages and uses your Search Web History. While before the policy changes, Web History was used particularly to cater to the users need and understand the searchers necessities and dynamics, now things have changed. Before the policy changes, the web history was exclusive domain of Google Search and the information never got outside that domain.
With the policy changes in effect, which some see as a good integration while other see as a breach of personal data, the web search history gets shared across almost all Google services. That means, at times, if you searched for sensitive information on Google that reveals certain things about you or your preferences, it might get shared over a large part of the Google services. This is something that not everyone is happy or comfortable with. So how do you make sure your web search history is safe or protected?
You turn it off. That’s the only plain solution for now.