The fact is that there is no fixed definition for Grey Hat SEO. It is a term devised by Internet Marketers to explain the use of certain tactics that are not clearly defined by search engines.
These techniques are not exactly what webmasters would like to boast about. But they are not downright underhand techniques either that’d get you a penalty in the blink of an eye. Faster results maybe, but with an obvious risk.
Some of the techniques are as follows :-
1)Buying Old Domains:
Rather than writing a top quality article, pitching it to multiple websites and waiting for weeks to see whether its accepted or not, why not buy an old expired domain with good statistics (PR, DA, PA) and get a back link from it in no time?
Since Google emphasizes on the use of original content to acquire links, some internet marketers came up with Content Spinning software that scrapes articles from other websites, replaces the words with their synonyms and comes up with an original article that makes for a doltish reading experience.
There are many websites with good metrics which offer a link in exchange for a one time or a recurring fee. Buying links is frowned upon by search engines. But is one of the easiest ways to get a quality backlink in very little time.
4)Automating Social Media:
Automated Social Media Bots can get you thousands of likes, follows and shares which would otherwise take years to get. While it may not be completely illegal, it is certainly considered as dishonest by Google.
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