In terms of SEO, optimization is the process of making your site search engine friendly so that organic/natural search engine rankings can be improved. Optimization includes items such as ensuring that your sie pages have keyword rich and unique title tags that are descriptiveof what the page content is about. Optimization may also mean having to overcome technical issues so that the search engine crawlers can access and index your site content. The fundamental goal of a well optimized website is to improve organic search rankings to gain better online visibility and encourage searchers to click on your listing and visit your website. Optimization also refers to content and ensuring that your have the proper content on your site for your site visitors.