What is SEO?
SEO is short for
search engine optimization,
the process of increasing the ranking of a web site in the search results of a search engine to increase the amount of visitors to the Web site.

It is common practice for Internet users to not click through pages and pages of search results, so where a site ranks in a search is essential for directing more traffic toward the site.
SEO helps to ensure that a site is accessible to a search engine and improves the chances that the site will be found by the search engine.