WordPress multi website copies around internet [closed]

Want to improve this question? Update the question so it’s on-topic for WordPress Development Stack Exchange.

Closed 8 days ago.

My first question here and its probably weird one, i own a wordpress website for some time, lately i found domains which are exact copies of my website, everything i add or change on my own website, the content change on the Fake domains.

I tried to register on fake domain and than i checked my own website and there was the username i registered. I am unable to figure out how is that connected, cause i dont own any other domain except my Own (1 domain) and which is on my vps. If anyone can explain me how this could work and is it possible to block it