Multiple registration
 

In the past, because the website login search engine and income into search engine is longer, so because someone didn't wait for resistance and constantly to login, and cause multiple registration.

Later, someone will this method as cheating way, use in a short time, constantly login within search engine, and even login thousands of search engines and hope to achieve the effect of forward ranking results.

With the current search engine for, this method has not applicable, excessive repeated login, but easy to cause adverse effect, and log on too many search engines, also is not necessarily a good thing.