Cloaking

A very simple definition of Cloaking; is a technique in search engine optimization (SEO) by which the content viewed by the visitor is different from the eyes of search engine spider. This is done by looking up the User-Agent HTTP header and or looking up at the IP addresses of who is requesting the page.

This is just a trick by the search engines specialist; they were trying to get number of clicks by visitors with no any ideas on clicking the pages listed in the first page. Generally, for the 24/7 operation of the internet, 50% of visitors are beginners or just experimenting on how and what they can do in searching and clicking any links without any reasons. If you have clicked a link to a website and no matter how long you are staying even just a second is considered as visitor. This is a chance for website owners who practicing this black hat SEO, but if they will find out by search engines, then they will be penalize and possibly drop from index.