The principle objective of this article is to analysis about Search Engine Optimization. SEO, the short form of Search Engine Optimization, leads us to a sequence of clues to know the modus operandi (the working technique) of search engines. SEO is about creation minute modifications to parts of a website. Viewing separately, these changes seem similar to incremental improvements, but when mutual with other optimizations, they could have a perceptible collision on the site`s user experience and performance in natural search results.