Paravan site" can be transformed into "Separate site" in English without altering its original meaning, ensuring SEO compatibility.

[Horodep]

Hello friends. Let's say we have set up a dummy site. We purchased the domain and hosting from different places. We have completed all the work and improved the position of the dummy site. After a certain time, we added a backlink to our main site. So far, let's say we have done everything correctly. However, I have a couple of important questions. Firstly, many people are adding and checking both the dummy site and the main site through the same Search Console and Google Analytics account. Secondly, will it go unnoticed by Google if someone accesses both the dummy site and the main site from the same phone, tablet, or computer?