Originally Posted by MAXKO Hosting
Google cannot detect are you used PBN or blog owner made real review.
If *I* can find that you're using a PBN, you can bet your butt that Google can find it
It's really not that hard when you look at a backlink profile for a site.
I've performed backlink audits from small sites, to sites with over 1 million links pointing to them - when you know what you're looking for, it's easy to spot a PBN. Once I have defined the PBN, I can now backtrace the entire PBN Network.
The entire structure of the Panda 4 update was targeting Thin Content, and combine that with the Penguin updates (which run in real time), their entire purpose was to find the link schemes and penalize.