I analyse one of my competitor and realize that he built a lot of t2 site (new domain not web 2.0) and link to his money site. But among of all these t2 site, it has 32/40 which has the same ip address including c class ip block. Does this site might get penalized soon? OR actually using same IP address doesn't really matter?? I saw his money site domain age for 8 years and he has a lot of keyword ranking on top 1.
If you were able to figure sure will google personnel if manual check comes ...how he is showing the link matters too
I don't think that this footprint will result in a penalty without a manual check. So don't rely that he gets penalized because he maybe don't. This doesn't mean that it's a good practice to use same IP's or C classes for PBN's.
Yep, it's certainly risky business, but when it comes to manual actions, there is luck or bad luck involved, too. I have seen sites ranking with the crappiest PBNs (all the same cms and exactly the same standard theme, all the same IP, all the same whois) for years, while other with much more sohpisticated approaches got busted in a few months or even weeks. The question is: Do you want to gamble or do you want to minimize obvious risks? Gambling is certainly cheaper and easier, but in most of these cases "the house always wins" is true.
