6, the proportion of all words is the density of keywords for home page columns, articles or the content page, generally not more than 10%, is generally in the 2%-8%, in the webmaster tools can be found.
1, including: target keywords and long tail keywords, keywords, the search volume according to popular keywords. The website keyword density is less than 10%, generally between 2%-8%.
certain search volume 200-600
(the number of sites, the competition is not domain independent means is to optimize the keywords, and included the number of snapshot update time, outside the chain, how many keywords are exact matching, site time, PR value, in scale, with the home page)