Settings. Tap Privacy and security. Tap Do Not Track. Turn the setting on or off.
Google uses personal data from Google Analytics, Global Site Tag, and from their many other trackers and products, so they can target you with advertising and content they think you'll want to see.
Google Ads
You can find out which information Google is tracking by visiting your Google Ad Settings page. There, you'll find a list of websites and topics that you've searched over the years, in addition to some personal information, like your age, gender, and general location.
Browsing history: Clearing your browsing history deletes the following: Web addresses you've visited are removed from the History page. Shortcuts to those pages are removed from the New Tab page. Address bar predictions for those websites are no longer shown.
On your Android phone, open the Settings app. Allow. At the bottom, tap Profile. Under “Tracking preferences,” turn Track your activities on or off.
Well, the short answer is yes. Hackers can gain access to your browser history in various ways: Hacking into company databases – They can get login details into your accounts like Google, which stores your Google Chrome browsing history.
If the content has been removed, and still shows up in a google search, this indicates the content (snapshot of the page) has been cached. If content was deleted from a site but still shows up in Google search results, the page description or cache might be outdated.
Important: If you delete Search history that's saved to your Google Account, you can't get it back. You can delete a specific activity, or delete your Search history from a specific day, a custom date range, or all time.
So, the general answer is no, your phone cannot be tracked when switched off. But this has been called into question numerous times. There have been talks of certain authorities still being able to track your phone when turned off.
On top of knowing which websites you visit and apps you use, smartphones can also access location data. That means advertisers can serve you content based on places you've been. For many people, this is the main reason to turn off app tracking on Android.
If You Use Google Products
If you do use Google products, they try to track even more. In addition to tracking everything you've ever searched for on Google (e.g. “weird rash”), Google also tracks every video you've ever watched on YouTube. Many people actually don't know that Google owns YouTube; now you know.
The My Google Activity page displays any recorded access of web sites, apps, location, and YouTube. Similarly, go to https://myaccount.google.com/device-activity to review a list of devices to which you've signed in with your Google account (Figure D).
What If I Delete My Browsing History On My Device? Deleting your browsing history is like deleting your email's “Sent” folder. On your end, it's gone, but the information has already been sent. Your information is on the WiFi owners' router logs, even if you have cleared it on your end.
Is Incognito/Private Mode Really Private? Incognito or private mode will keep your local browsing private, but it won't stop your ISP, school, or employer from seeing where you've been online. In fact, your ISP has access to all your browsing activity pretty much no matter what you do.
By default, Google deletes this data after 18 months. However, your users can change the deletion period to 3, 18, or 36 months, or to never delete data. Additionally, users can delete some or all of their saved activity at any time.