Reply to  Barak Weichselbaum i just know c++ a little bit, I have no idea where to start out and with what tools to construct seo application, i like to create my self.. coz ahref and semrush its much too expensive to me. so I beg you to recommend what http://directory-for-business80244.blogsidea.com/9705269/about-3rd-party-seo-tools-when-use