SEO is the practice of improving and promoting a website in order to increase the number of qualified visitors the site receives from search engines. There are many aspects to SEO, from the words on your page to the way other sites link to you on the web.
Sometimes SEO is simply a matter of making sure your site is structured in a way that search engines understand. Search Engine Optimization isn’t just about building search-engine friendly websites. It’s about making your site better for people too.
The search engine optimization includes many sub branches.