In the words of SEO Consultant John Andrews, Gray Hat SEO is not something between Black Hat and White Hat, but rather "the practice of tactics/techniques which remain ill-defined by published material coming out of Google, and for which reasonable people could disagree on how the tactics support or contrast with the

mixing the white hat and black hat techniques smartly in terms of ranking improvements is known as greyhat and there is no one can declares the exact greyhat techniques for your business unless giving a complete study.

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Gray hat SEO is the combination of both white hat and black hat SEO .It is illegal method to increase the page rank and traffic.

What is gray hat SEO techniques?
 

Gray hat SEO is the combination of both white hat and black hat SEO .It is illegal method to increase the page rank and traffic. Cloacking, Duplicate content etc., are some of the gray hat SEO techniques.Great Post.