Q. Is on-site factors are enough for Search Engine Optimization ?

A. Even if your website is well designed, has proper meta tags and has keyword-rich text, this alone does not guarantee that your site will rank high in competitive queries. All of these factors, design, meta tags and copywriting, are on-site factors. Search engines certainly take them into consideration, but they also value off-site factors such as how many high quality websites are linking to you. This means you have to work on-site optimization as well as you have to get good quality links to your website.