Definition of a PBN? Why Create a PBN?
The Private Blogs Network or PBN is drop or aged domain name mostly TLD (top level domain) extensions who created for one or couple niches/industry following rule of intense SEO technique for maximum SEO benefit and became efficient positioning techniques to dominate search engines because they ability to gain quality links from relevant and natural look alike website. As we knew content marketing is one of most popular SEO Technique today, links from informative and readable blog would be boosting your SERP.
Unlimited sub domains