It does, in the same way that your Google Chrome browser does, but you could switch to Chromecast's incognito mode to keep your browser history clear. All you need to do is type chrome://extensions, find the Google Cast section and select the "Allow in incognito" option. . This will let you Cast whatever you want without having others see what you’ve been up to, not your family or roommates sharing the Chromecast, or even Google itself. If you have any similar questions, reach out to our 24/7 customer support team. They’re always happy to help with any privacy-related query.