Do any sub-domains act as Private Blog Networks?

[vtmoz]

Hi All,

We can see now that Google rolled 2 unconfirmed algo updates this month and they are penalising spam links and sites which use Private blog networks; as said by some SEO experts. Do any sub-domains act as PBNs because of too much linking...like linking website pages from every page of sub-domains?

[Alick300]

Hi,

No, not at all. sub-domain doesn't act as private blog network. For more clarification I'm sharing PBN defination and hope that helps you.

A private blog network (PBN ) is a set of domains that you or another individual owns. It is possible to have a PBN consisting of free blogs, like wordpress.com, tumbr.com, or livejournal.com. Typically, the free blog domains do not have as much power as self hosted blogs.

Thanks

[vtmoz]

Thanks for the answer & confirmation. What if we get back links from different social channels like tumblr, digg, stumbleupon, etc....

Back links from these social discussion forums hurt?