How do you optimize your site for ecommerce? Keep in mind that the basics of search engine optimization (SEO) are the same for an ecommerce site as they are for a government site about sidewalk renovation. SEO is generally considered to have two basic categories, on-page (or on-site) and off-page (or off-site), and this is especially important for you as an online merchant. Your on-site optimization generally concerns your content, and content includes articles, product descriptions, menu names, sub-menus, headlines, and anything else that has text. On-site optimization also includes your site architecture, meaning the organization of your categories, products and pages. Off-page, or off-site optimization generally concerns quality and number of back links pointing to your site's pages.