Meta keywords section character number of your 4500.so web site is 185character. According to the search engines optimization criterias , It can be say that your meta keywords performance is so successful. With this keyword performance , It is supposed to get more visitors out of internet. If you don't reach visitors number which you want, We advise that you should take care the keywords which you used in , is about your site's content or not. Also be sure that you make the search engine's other criterias.