In SEO, keywords are essential as it helps in improve website rank, more traffic to website as keywords are the words that are utilized by users for searching purpose.
Main purpose of using keywords to optimize the full site with a simple word that word referred as Keyword.Because it is quite difficult to remember all sites which are provide that facility.
Search engine stores keywords in the database, and when search is done, it will come up with the best possible match. Main purpose of using keywords to optimize the full site with a simple word that word referred as Keyword.Because it is quite difficult to remember all sites which are provide that facility.