Knowing these and other aspects is crucial if you want to avoid finding yourself with your site inexplicably in the abyss. To tell the truth, then, doing this type of check is also very simple! You simply need to check the history of the site on https://web. archive.org/ (the largesthistorical archive of the web) so as to be able to verify that the domain has not been the victim of such abuses in the past.
Now I ask you, “Do you think these checks are always kazakhstan phone data done by those who sell links from PBNs?”. Here, we understand each other. But be careful. Not all drops are bad, on the contrary. It's important to understand, however, that creating a PBN is serious and very, very expensive. We are talking about an activity that requires commitment and competence. Unfortunately, they are often set up 'to save money', in the face of those who buy links in the hope of seeing their site gain positions on Google.
As far as I know, today in Italy there are very few who carry out this activity with all the necessary respects. And since PBNs were created to rip off Google, it's always good to consider that you're going to steal from the thief's house. If you are thinking about it, inform yourself well and carefully evaluate whether the game is worth the candle.