Everything Google knows about you

According to Google, I am a woman between the ages of 25 and 34 who speaks English as her primary language and has accumulated an unwieldy 74,486 e-mails in her life. I like cooking, dictionaries and Washington, D.C. I own a Mac computer that I last accessed at 10:04 p.m. last night, at which time I had 46 open Chrome tabs. And of the thousands and thousands of YouTube videos I have watched in my lifetime, a truly embarrassing number of them concern (a) funny pets or (b) Taylor Swift.

I didn’t tell Google any of these things intentionally, of course — I didn’t fill out a profile or enter a form. But even as you search Google, it turns out, Google is also searching you.
Want to find out all the things Google knows about you? Read on...

Find Out What Google Knows About You

Whether you are browsing the Internet for basic information or your whole life depends on the Internet, you are somehow connected to Google services. This means that Google also knows a lot about you and keeps track of your online activities to provide a better service. This may raise privacy concerns for privacy-conscious people. After all, not everyone is comfortable with someone tracking every location they visit. If you are a bit concerned about Google tracking you, then you might want to know what Google actually knows about you, and you may even opt out. In this article we will help you find out what Google knows about you and how to opt out of it.

1. Find out what Google thinks about you

In order to serve relevant ads, Google collects data about you and creates a profile. You can control and review the information Google has on you here: 
http://www.google.com/settings/ads/

Google also has a tool called Google Analytics, that helps publishers see what pages you have viewed on their website, how many times you have visited it, how long did you stay etc. You can opt out if you don’t want this type of data to be collected:
http://tools.google.com/dlpage/gaoptout

2. Find out your location history

If you use Android, your mobile device may be sending your location to Google. You can see your entire location history here:
https://maps.google.com/locationhistory

3. Find out your entire Google Search history

Google saves every single search you have ever done. On top of that, they record every Google ad you have clicked on. This log is available in Google web history controls:
https://www.google.com/history/

4. Get a monthly security and privacy report from Google

Google offers an Account activity page that tells you about all the Google services you are using. You can even enable a monthly report that will be sent to your email:
https://www.google.com/settings/dashboard

5. Find out all the apps and extensions that are accessing your Google data

The Account activity page also offers a list of all the apps that have any type of access to your data. You can see the exact type of permissions granted to the app and revoke access to your data here:
https://security.google.com/settings/security/permissions

6. Export all of your data out of Google

Google lets you export all your data: bookmarks, emails, contacts, drive files, profile info, your youtube videos, photos and more here:
https://www.google.com/takeout

Google tracks everything you do: here's how to delete it

Google saves every voice search

Google's voice search-saving habits have been reported on many times.
Anyone who use Google's voice search or the voice-activated assistant, Google Now, have their searches stored so that more relevant ads are served and search features are steadily improved -- in the same way you'd expect from regular Google search.

And a lot of people don't realise that many of these searches are actually recorded. This means users are able to listen back to exactly what they searched for by listening to what they said and how they said it.
How to delete it: If you've used any of Google's opt-in voice features for yourself, then head to Google's Voice & Audio Activity page to review your voice searches and listen back to them. Be warned, this could be interesting, funny or just plain cringe-worthy.

To delete this database of embarrassing searches select one or more of the recordings from the check box beside them and then click "delete" at the top of the screen.

Google saves all your searches

Probably the least surprising of the lot, but Google has all of your search history stored up.
How to delete it: If you'd rather not have a list of ridiculous search queries stored up, then head to Google's history page, click Menu (the three vertical dots) and then hit Advanced -> All Time -> Delete.
If you want to stop Google tracking your searches for good, head to the activity controls page and toggle tracking off.

Google tracks and records your location

As well as recording your searches and your voice, Google has also been keeping tabs on your location.
Google's location history, or timeline page, serves up a Google Map and allows you to select specific dates and times and see where you were. Its accuracy depends on whether you were signed into your Google account and carrying a phone or tablet at the time.

How to delete it: When you visit the timeline page you can hit the settings cog in the bottom right hand corner of the screen and select delete all from there.
There's also the option to pause location history by hitting the big button in the bottom left-hand corner of the screen.

But this one is a little trickier to completely get rid of, because to stop it happening in future you'll need to opt out of both location tracking and location reporting with your device -- whether you're running Android or iOS.

BONUS

Google also keeps a history of your YouTube searches. You can find it here:
https://www.youtube.com/feed/history/search_history