PBN stands for private blog network. In SEO it means a group of websites, usually built on expired domains that still have backlinks, that one person or company controls and uses only to link to a main “money” site in order to raise its rankings. Google treats PBN links as link spam.
On this page
How a PBN works
- The owner buys expired or auctioned domains that still have backlinks from their previous life.
- Each domain is rebuilt as a simple blog with enough content to look like a real site.
- Posts on those blogs link to the money site, often with keyword-rich anchor text.
- The owner tries to hide that the sites are connected by using different hosting, themes, registration details and analytics accounts.
The aim is to pass the authority of the old domains to the money site without earning links from independent publishers.
Are PBNs against Google’s guidelines?
Yes. Google’s spam policies prohibit links intended to manipulate rankings, and a network built only to link is a clear case of link spam. Buying expired domains to exploit their old reputation is also covered by Google’s expired domain abuse policy.
Risks of using a PBN
- Links stop counting. Google’s systems, including SpamBrain, are designed to neutralise this kind of link, so the money spent on it is lost.
- Manual actions. A reviewer can issue an “unnatural links” action against the money site, which can remove it from results.
- Deindexed networks. When a network is identified, every site linked from it is exposed at once.
- Ongoing cost. Domains, hosting and content for dozens of sites cost more than most legitimate link campaigns.
- Vendor risk. Bought PBN links usually come from networks that sell to hundreds of customers, which makes them easy to detect.
How PBNs are detected
- Shared IP addresses, hosting, name servers or registration details.
- The same analytics, advertising or tag manager IDs across sites.
- Thin or generic content with no real audience or traffic.
- A domain whose topic changed abruptly after it expired.
- Sites that link out heavily to commercial pages and receive few new links themselves.
- Many sites sharing the same themes, plugins and layouts.
How to check whether you have PBN links
Export your backlinks from Google Search Console and a backlink tool, then review the linking domains for the signs above. This matters most if a previous agency sold you “guaranteed” or “high-authority” link packages. If you find PBN links you paid for, ask for removal and disavow those you cannot remove.
Safer alternatives
- Digital PR: data, stories and expert comment that journalists link to.
- Original research, tools and guides that earn links over time.
- Guest articles on real publications with real audiences, written for readers.
- Links from partners, suppliers, associations and local organisations.
- Reclaiming unlinked brand mentions and fixing broken links to your site.
Frequently asked questions
What does PBN mean in SEO?
PBN means private blog network: a set of websites controlled by one owner and used only to link to another site to raise its rankings.
Are PBN links safe?
No. They break Google’s spam policies. Google usually ignores them and can penalise the sites that use them.
Do PBNs still work?
They can produce short-term gains, but the links are discounted once detected and the risk of losing rankings is high.
How can I tell if a backlink comes from a PBN?
Look for thin content, no real traffic, heavy outbound commercial links, shared hosting or analytics IDs and a domain that changed topic after expiring.
What is the PBN meaning SEO professionals use?
When people search “PBN meaning SEO”, the answer is private blog network: a group of sites built only to link to another site and manipulate its rankings.
Want experts to handle this for you?
Our specialists turn these fundamentals into rankings, leads and revenue. Start with a free, no-obligation audit of your site.