PBN or private blog network are private blog networks. It is basically a blogging platform where you can create your own blog on a subdomain. The advantage is the speed of creating your blog and article on such a blog. The problem may be that no link from the main domain is likely to point to this subdomain. Therefore, placing a link to this subdomain may not transfer any power, as no link juice from the main domain will be transferred to the subdomain. Therefore, it is advisable to create additional backlinks to subdomains from other sites, which will transmit additional link juice and allow faster search engine indexing. Another disadvantage may bet he irrelevance of the domain. Because blogging platforms are used by bloggers, webmasters, and link builders from various fields, the focus of the domain is very general. The advantage is the low price.
All inks that will be located on a subdomain can be considered PBN backlinks. Therefore, to search for links, enter 'Subdomain' next to Domain Type in the filter.