On Page SEO is A Technique that Helps to Make Web Pages Search engine Friendly by optimizing HTML tags , Content , Navigation etc .
On page is most important for Website as Google Allows Only Well optimized websites to get ranked with there SERP's .
In search engine marketing, on-page optimisation is the term used for aspects that come with an impact on your Web site or Web page list in search engine results. These elements are managed by you or by programming on your webpage. Samples of on-page seo consist of real HTML code, meta tags, keyword placement and keyword density.