Private blog networks: A great way to get your site penalized
You may have found out about personal blog systems (PBNs) before, but you might not be sure what they're or why they're used. A PBN is really a system of sites applied to create hyperlinks (and thus move authority) to just one site for the objective of influencing se rankings. This scheme resembles a URL wheel or URL pyramid since it requires several different sites all linking together or to at least one key website.
While this kind of system was applied commonly years back, PBNs have today been regarded as a natural black hat approach and must be avoided no matter what, as they are able to lead to a loss in rankings or possibly a manual penalty. PBNs generally provide small to no long-term price to the websites they're linking to.
A lifeless giveaway for several PBNs is having an identical backlink profile. If multiple Internet sites have exactly the same URL profile, or if all of the URLs to at least one site on multiple occasions (especially where it looks like overkill or it is not relevant), then your website is a probable element of a PBN — or, at the very least, is offering links. Google's Penguin algorithm, which today runs in real-time included in the key position algorithm, can detect most of these systems and devalue your site rankings as a result. Sometimes, you could even wind up with a manual penalty.
Nevertheless, only owning several different sites does not suggest you're a personal blog network. Like, media companies that own several internet sites and URL to them in most site footers wouldn't likely need to bother about being flagged as a PBN unless the websites weren't related, there were a large number of hyperlinks in the footers, or they certainly were linking to similar internal pages repeatedly.
Furthermore, PBNs are general categories of internet sites all held by one organization or personal, but split up people who will work together to URL together could also be considered a PBN if you have a design of over repeatedly linking to exactly the same internet sites or pages across several different categories of websites.