Keywords are the Key Stone of Your Site. A site crawl in different Search Engine is based on keywords. So this is most important to choose perfect keywords for your site. This is as depends on your Service or Product and also depends on your competitor’s strategy. So while going to setup keywords structure for your site this is need to verify what your competitor used for his site. So this is most important to manually research the keywords and using it. Two types of keywords basically crawl by the search engine like Google and others. One is long tail keyword and other is short tail keyword.
First needs to research long tail keywords and then move to short one. Because organic traffics are also most important to SERPs. We working at this field more over 10 years, If you give us a chance then we can prove that.