Here are the rules you can follow to build a secure network

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But this does not mean that you should abandon the promising technology. You just need to act carefully, the search engine should not "guess" that the resources belong to one owner and are somehow interconnected.
Place your sites on different hostings. It is permissible to make part of the network on one, provided that the hosting is good and you were able to agree on placing resources on different servers. It is also undesirable to use the same card or payment system for payment.
Register domains under different names and different emails or hide personal data in Whois. The first option is preferable, since the very fact of hiding can arouse suspicion among search engines.

Do not register domains in one day, take breaks of at least 2-3 days. The longer this process is spread out in time, the better.
Deploy sites on different CMS. It is not necessary to belarus whatsapp number data choose a separate engine for each one, but at least half of the resources should be made in another system. You should also not use the same plugins and themes.

Avoid duplication. Develop different designs and structures, widget sets and logos. Content should be unique.
On the contact page, indicate different addresses, phone numbers, and e-mails.
Don't link from the promoted project to PBN , this can also give you away.
Dilute PBN links with other backlinks. Do not completely abandon outreach, crowd marketing , purchased links. The process of increasing the link mass should look natural.