So recently trying my hand at building 10 PBN's and had some clients paying for some links. Some of my clients had keywords that were ranking but all of a sudden dropped off the face of the earth. Is there anyway to find out why? They go no notification from Google that they had been penalized etc. Could it be because of hosting? All host are $1 host but all 10 PBN sites hosted with completely different companies. Will Google penalize sites automatically because they are hosted with cheap hosting companies?