Great question — answering as the UphillTech team:
The Short is answer is: Sort of... The long answer is they track things partially, and not completely accurately. They can see who's visiting your site from Google search results. They can track usage when other visitors check your site from any browser that uses Google's phishing protection. As you can see, it's not all about you, but more about how your visitors check your site out.
Full answer by Waleed Hamra: https://webmasters.stackexchange.com/a/38205 (CC BY-SA 3.0).
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