PR(page rank) is used to measure a website’s rank,which is divided into 11 levels, from pr0 to pr10.sites with high PR indicate high levels of the site. PR always affect the SERP. Therefore, how to get decent PR has been the dream of many webmasters.
Then how to get high PR , first of all you need to understand the PR’s algorithm.It’s said that Google’s algorithm is the largest trade secrets of this century, so nobody knows how PR’s algorithm works.However,some researchers through experiments find that the back links are key factor for PR’s algorithm.
