Google’s policy on pbn usage is fairly clear: web pbns are not allowed. That said, there are still some seo experts who swear by pbn backlinks as a way to boost rankings. So, while it’s technically against Google’s policies, pbn usage may still be worth pursuing if you’re looking for a competitive edge.
Google has never officially announced a policy on Private Blog Networks (PBNs), but they have hinted that they do not approve of the practice. In 2016, Google’s John Mueller said that PBNs can “lead to issues” and advised webmasters to “build something sustainable for the long term.”