Lets say that I started a site and found my main keyword that scored 30 in difficulty ,and few other keywords that are relavant and scored 30-50 in difficulty. Do I put this main keyword in the site description ? Is that how I point to the home page or I should do somehting else? What about the other keywords ? Do I make them the focus keyword for the categories and pages or what? Suppose that my posts are daily news posts, so do I also have to make onpage SEO and take care of the density of the focus words? In general, my question is on how do I put my keywords in my site. If for example, my main keyword is California Daily News , and my other keywords are: California daily weather news, California daily traffic news, California daily political news...etc So, you see that these keywords won't appear on the posts. They can be the category or page name only and the main keyword can be the site title name or description. So , do I rank for these keywords ? Do I write an article on each category page and include the focus keyword ? How to do SEO for this type of sites? How and where to add these keywords to my site?