Search engine optimization (SEO) According to Wikipedia, Search engine optimization (SEO) is the process of affecting the visibility of a website or a web page in a web search engine's unpaid results—often referred to as "natural", "organic", or "earned" results. in general way, "SEO is a techniques, which is used for increasing your website or web page ranking in search engine results." How Search Engine Works? Search engines perform several activities in order to deliver search results. 1.Crawling 2.Indexing 3.Processing 4.Calculating Relevancy 5.Retrieving Results What is On-Page and Off-page SEO? There are two ways of optimization: On-Page SEO - It includes providing good content, good keywords selection, putting keywords on correct places, giving appropriate title to every page, etc. Off-Page SEO - It includes link building, increasing link popularity by submitting open directories, search engin