SEO is a Long-Term Investment The process of SEO (search engine optimization) is a long-term investment because, like any worthwhile investment, it takes time to grow. If your company is investing in traditional marketing campaigns, it is essential to invest equally in SEO and digital campaigns.The three types of SEO are: On-page SEO - Anything on your web pages - Blogs, product copy, web copy. Off Page SEO - Anything that happens away from your website that helps your SEO Strategy - Backlinks. Technical SEO - Anything technical done to improve Search Ranking - site indexing to help bot crawl.