Grey hat SEO techniques take more risks than white hat SEO techniques but aren’t likely to get your site banned from search engines (although a search engine penality could result).
They’re questionable SEO techniques but not in the same category as black hat SEO techniques. However, what’s considered gray hat SEO today might be black hat SEO next year. Rather than this led to the development of the website.
Grey Hat (or Gray Hat): Since the color gray is between black and white, logically Grey Hat SEO sounds like a label for the middle ground. But it’s not. Because White is pure white and grey is a shade of black, we have confusion. Some say Grey Hat is NOT White Hat and is just a shade of Black Hat. So let’s step away from the coor wheel and define Grey Hat as the practice of tactics/techniques which remain ill-defined by all that published material coming out of Google, and for which reasonable people (not White Hat SEOs, mind you, but “reasonable people”) could disagree on how the tactics support or contrast with the “spirit” of Google’s published guidelines.
There are certain process of using gray hat techniques which are as follows:-
Cloaking is the practice wherein the web site owner provides information to the search engines which is different from what the site actually contains. Obviously, this is a practice that reeks of deception. However, there are certain cases when this practice can be deemed acceptable. For example, if the web site has content that is available only to members then it could be acceptable. Then again, this practice can very well be abused. That is the main reason cloaking is considered gray hat SEO.
We all know how important links are for SEO. That is why it is quite understandable that the practice of buying links can become questionable. Purchasing links for advertising purposes is fine. However, if you purchase links solely because you want in link-popularity, then it could be considered shady. In fact, the suggestion is that you work on links to increase your traffic and just consider the increase in link-popularity as icing on top of the cake.
Duplicate content can be considered legitimate in certain cases but rarely. For example, indexing and abstracting web sites may have duplicate content. In most cases, though, duplicate content is considered unacceptable.
WordStream is the perfect marriage of differentiation and adherence to guidelines. The software was created with Google’s terms and conditions in mind, but also to automate repetitive tasks to improve Quality Score, save time, and lower costs. These tools include:
Keyword Grouping Tool: This automatically organizes your keywords by relevance, a key component of a good Quality Score
Ad Text Tool: The Ad Text tool automatically populates your ad copy with appropriate keywords, making sure your creative is relevant to its Ad group