For non-personalised content and ads, what you see may be influenced by things like the content that you’re currently viewing and your location (ad serving is based on general location). Personalised content and ads can be based on those things and your activity, like Google searches and videos that you watch on YouTube. Personalised content and ads include things like more relevant results and recommendations, a customised YouTube homepage, and ads that are tailored to your interests.
Click 'Customise' to review options, including controls to reject the use of cookies for personalisation and information about browser-level controls to reject some or all cookies for other uses. You can also visit g.co/privacytools at any time.