What are the characteristics of long tail keywords
 

We know the website 90% of flow mainly comes from long tail keywords, and for a just contact new friends speaking, there are still doubts, what is the long tail keywords, and long tail keywords what features? The following for you explain this.
1, often is 2-3 word composition, even is the phrase, it is generally more long.
2, flow is lesser, quantity is very much, even the most words have not been dug out.