SEO has been very popular on the last decade. The optimisation itself is divided into two big focuses: on page and off page. Off page SEO encompasses the external factors, such as PageRank or hyperlink analysis, while on page SEO means you have to do all the hard work internally from your website, like keywords selection, meta tags, genuine contents, etc. Here is a complete list of what-to-do on page SEO that you will use. Check out this infographic:
