Ranking methods have come a long way in past years with the beginning of the space vector models, various feature based approaches been proposed. Search engines are allowing the individuals to specify the queries simply as the keywords lists, following approach of the retrieval of the traditional information type systems. SEO is way of improving visibility of website or a webpage in the search engine by natural search or unpaid searched results. In optimization of search engine updating or modification of all variables to get a better location in search engine take place. Recommending the users with most useful keywords search not only to enhances the search engine's hit rate, but helps individuals to find the desired type of information more instantly. Behind such types of query the recommendation also interfaces, the important role is played by query log study. Clustering is a learning which is called an unsupervised not supervised learning like Classification. In the clustering method, dataset objects are then grouped into the clusters, in a way that the groups are different from one other ,the objects which are in same group or the cluster are identical to the each other.