SEO, what is it and why do most websites need it? A common myth is if you build it then visitors and increased business will follow. This is not the case if no one can find your website and it never shows up in the search engine results.Search engine optimization has only been around for a few years and is in more need than ever before to make a presence on the web today.  With so many websites on the Internet today it is easy to get lost in the mix and be pushed farther and farther down the search engine results.